Browse historic district guides

Ocean City Residential Historic District

Architectural History and Historic Architecture

You might spot Laughing Gull, Yellow-Crowned Night Heron, and White Ibis.

Ocean Drive Historic District

Architecture and Coastal Views

You might spot Rugosa Rose and American Herring Gull.

Offshore Reefs Archeological District

Conservation and Coral Reefs

You might spot Great Barracuda, Gray Snapper, and Atlantic Sergeant Major.

Old Administrative Area Historic District

Architectural History and Ccc

You might spot Moose, Arrowleaf Balsamroot, and Creeping Mahonia.

Old Ashton Historic District

Biking and Blackstone River

You might spot Common Mugwort, Duck, and Eastern Gray Squirrel.

Old Auburn Historic District

You might spot Pipevine Swallowtail, White Globe Lily, and Toyon.

Old Beechwold Historic District

Architecture and Clintonville

You might spot White-Tailed Deer, Bee, and Common Eastern Bumble Bee.

Old Cambridgeport Historic District

"19th Century Homes" and "architectural Styles"

You might spot Common Eastern Bumble Bee, Bee, and Eastern Gray Squirrel.

Old Clinton Historic District

Antebellum Architecture and Architectural History

You might spot Common Eastern Bumble Bee and Bee.

Old Faithful Historic District

Family Friendly and Geysers

You might spot American Bison and Common Raven.

Old Harbor Historic District

Block Island and Coastal Views

You might spot Rugosa Rose, Chicory, and Northern Bayberry.

Old Lyme Historic District

American Impressionism and Architectural History

You might spot Osprey, Monarch, and Common Reed.

Old Mill Site Historic District

Architecture and Hatfield

You might spot Painted Turtle, Red-Tailed Hawk, and American Bullfrog.

Old National Park Service Housing Historic District

Architectural Heritage and Bryce Canyon

You might spot Common Golden-Mantled Ground Squirrel and Steller's Jay.

Old Northside Historic District

Architecture and Family Friendly (older Kids)

You might spot Eastern Fox Squirrel, Duck, and Canada Goose.

Old Sacramento Historic District

California History and Family Friendly

You might spot Horse-Fly Carpenter Bee and Anna's Hummingbird.

Old Saybrook South Green

Architecture and Colonial History

You might spot Common Eastern Bumble Bee, Osprey, and Monarch.

Old Town Eureka

Art Galleries and Boutique Shopping

You might spot Pacific Banana Slug and Western Lily Of The Valley.

Old Town Pasadena

California History and Culture

You might spot Western Fence Lizard, Eastern Fox Squirrel, and Bee.

Old Village Historic District

Architectural Styles and Downtown

You might spot Swamp Rose Mallow, Amur Honeysuckle, and Great Blue Heron.

Oley Township

Agricultural and Architectural

You might spot Wood Anemone, Cut-Leaved Toothwort, and Lesser Celandine.

Olympic National Park Headquarters Historic District

Accessible and Educational

You might spot Mule Deer, Harlequin Duck, and Pacific Trillium.

Onion Portage Archeological District

Archaeology and Arctic Wilderness

You might spot Wood Frog, Northern Wheatear, and Caribou.

Opelousas Historic District

Architectural Heritage and Cajun & Creole Culture

You might spot Northern Mockingbird and Eastern Fox Squirrel.

Orange Street Historic District

19th Century and Architecture

You might spot Common Mugwort and Eastern Gray Squirrel.

Oregon Hill Historic District

Architecture and Historic District

You might spot Canada Goose, Duck, and Red Deadnettle.

Orford Street Historic District

Architectural History and Cultural Heritage

You might spot Eastern White Pine, Trailing Arbutus, and White Oak.

Orient Historic District

American History and Architecture

You might spot Eastern Box Turtle, Osprey, and Low Pricklypear.

Overlook Historic District

Colonial Revival and Historic Architecture

You might spot Eastern Gray Squirrel and Japanese Barberry.

Packard Proving Grounds

Albert Kahn Architecture and Automotive History

You might spot Eastern Skunk Cabbage, Eastern Gray Squirrel, and Duck.

Painted Desert Community Complex Historic District

Archaeological Sites and Geology

You might spot Common Raven, Plateau Fence Lizard, and Fourwing Saltbush.

Palace of Fine Arts

Accessible and Architectural

You might spot Western Gull, Great Blue Heron, and Anna's Hummingbird.

Palmerton Historic District

American Architecture and Company Town

You might spot Staghorn Sumac, Spotted Lanternfly, and Butterfly Bush.

Paradise Historic District

Family Friendly and Hiking

You might spot Hoary Marmot, White Pasqueflower, and Avalanche Lily.

Park Street Historic Commercial District

Accessible and Architecture

You might spot Black-Crowned Night Heron, Snowy Egret, and Duck.

Parkis-Comstock Historic District

Historic Architecture and Providence History

You might spot Spotted Lanternfly, Duck, and American Robin.

Pasadena Civic Center District

Beaux Arts Architecture and Cultural Events

You might spot Western Fence Lizard, Eastern Fox Squirrel, and Bee.

Pasaquan

Art Environment and Cultural Heritage

You might spot Broad-Winged Hawk and Common Buckeye.

Paseo Arts District

Architecture and Arts & Culture

You might spot Monarch, American Bumble Bee, and Gulf Fritillary.

Pawleys Island Historic District

Barrier Island and Beach Access

You might spot Blood Ark, Anole, and Willet.

Pawtuxet Village

Birdwatching (waterfowl) and Colonial Architecture

You might spot Mute Swan, Common Eastern Bumble Bee, and American Robin.

Pee Dee River Rice Planters Historic District

Antebellum History and Architectural History

You might spot American Alligator and Rare Skipper.

Pekin Street Historic District

Architecture and Historic District

You might spot Spotted Lanternfly and American Robin.

Peninsula Village Historic District

Architectural Heritage and Art Galleries

You might spot American Cancer-Root and Christmas Fern.

Pennellville Historic District

Architectural History and Brunswick Maine.

You might spot Pink Lady's Slipper, Wood Lily, and Great Blue Heron.

Petersburg Old Town Historic District

American History and Architecture

You might spot American Sweetgum and Japanese Stiltgrass.

Pettigru Street Historic District

Architecture and Bungalow

You might spot Northern Cardinal, Duck, and Northern Mockingbird.

Philadelphia Naval Shipyard

Adaptive Reuse and Architectural Heritage

You might spot American Robin, Red-Winged Blackbird, and Duck.

Philip H. Sheridan Reserve Center

"birdwatching" and "cross Country Skiing"

You might spot Monarch, Red-Tailed Hawk, and Large White Trillium.

Pickett State Rustic Park Historic District

Bird Watching and Camping

You might spot Bigleaf Magnolia, Hartford Fern, and Box Huckleberry.

Pierce Farm Historic District

19th Century Homes and Architectural Photography

You might spot Common Eastern Bumble Bee, Bee, and Duck.

Pike Place Market

Artisan Crafts and Family Friendly

You might spot Rock Pigeon, American Crow, and Pigeon Guillemot.

Pilsen Historic District

Architecture and Art

You might spot Rock Pigeon, Canada Goose, and House Sparrow.

Pine Street Historic District

19th Century and Greek Revival

You might spot Spotted Lanternfly, Duck, and American Robin.

Pinehurst Historic District

Alabama Heritage and Early 20th Century

You might spot Anole, Eastern Gray Squirrel, and Asian Lady Beetle.

Pines Bridge Historic District

Architectural Heritage and Connecticut History

You might spot Asian Lady Beetle and Baltimore Snout.

Piquette Avenue Industrial Historic District

Accessible and Automotive History

You might spot Eastern Gray Squirrel, Rock Pigeon, and House Sparrow.

Pittsfield Center Historic District

Architectural Heritage and Cultural Heritage

You might spot Eastern Bluebird, Eastern Phoebe, and Chipping Sparrow.

Pittsfield Historic District

Abraham Lincoln and Architectural Heritage

You might spot Henbit Deadnettle, Metric Paper Wasp, and Dryad's Saddle.

Plainfield Village Historic District

Architectural Photography and Community

You might spot Common Eastern Bumble Bee and Red Trillium.

Pleasant Hill Historic District

African American History and Architectural Heritage

You might spot Gulf Fritillary and Common Eastern Bumble Bee.

Point Retreat Light

Admiralty Island and Alaskan History

You might spot Humpback Whale, Steller Sea Lion, and Orca.

Point San Luis Light

California Central Coast. and Coastal Views

You might spot Onion-Leafed Asphodel, Bermuda Buttercup, and Coyote Brush.

Polebridge Ranger Station Historic District

Glacier National Park and Hiking

You might spot Sticky Geranium, White-Tailed Deer, and Common Toadflax.

Port Jefferson Village Historic District

Cultural Events and Dining.

You might spot White-Tailed Deer and Eastern Cottontail.

Port Townsend Historic District

Arts And Culture and Family Friendly

You might spot Mule Deer, Yellow Sand Verbena, and Bald Eagle.

Post Office Historic District

"architecture" and "art Deco"

You might spot Anole, Bee, and Bristle Thistle.

Powhatan Courthouse Historic District

Architectural Significance and Colonial History

You might spot American Toad, Northern Cricket Frog, and Spring Peeper.

Pratt Street Historic District

Architecture and Art

You might spot American Robin, Duck, and Common Eastern Bumble Bee.

Prospect Historic District

Architectural Walking Tour and California History

You might spot Western Fence Lizard and Coast Live Oak.

Prospect Street Historic District

Connecticut History and Greek Revival

You might spot Common Mugwort, Canada Goose, and American Herring Gull.

Providence Jewelry Manufacturing Historic District

Architectural History and Historic District

You might spot Spotted Lanternfly, Duck, and American Robin.

Provo City Library

Art Exhibits and Children's Programs

You might spot Duck, Gambel Oak, and Box Elder.

Puna-Ka'u Historic District

Archaeology and Big Island

You might spot ʻōhiʻa Lehua and Stinking Passionflower.

Putnam Street Historic District

Architectural Styles and Historic Architecture

You might spot Eastern Gray Squirrel and American Robin.

Puvunga

Acjachemen Culture and Bird Watching

You might spot Eastern Fox Squirrel, Western Fence Lizard, and Duck.

Quadrangle-Mattoon Street Historic District

Architectural History and Art Festival

You might spot Asian Bittersweet and Eastern Gray Squirrel.

Quaker Farms Historic District

Architectural Photography and Colonial Architecture

You might spot American Wintergreen, Christmas Fern, and Partridgeberry.

Quinnipiac River Historic District

Architectural History and Connecticut History

You might spot White-Throated Sparrow and Eastern Gray Squirrel.

Railroad Addition Historic District

Architecture and Arizona History

You might spot Dark-Eyed Junco and Plateau Fence Lizard.

Rancho Estelle

Architectural Ruins and Big Bend National Park

You might spot Mexican Palo Verde, Ocotillo, and Giant Reed.

Randolph Center Historic District

Architectural Heritage and Federal Architecture

You might spot Northern Cardinal, Wood Frog, and White-Breasted Nuthatch.

Randolph Street Commercial Buildings Historic District

Architectural Photography and Commercial District

You might spot Monarch, Canada Goose, and Eastern Gray Squirrel.

Rattlesnake Springs Historic District

Accessible and Bird Watching

You might spot Vermilion Flycatcher, Turkey, and American Rubyspot.

Redstone Coke Oven Historic District

Architecture and Beehive Ovens

You might spot Red Osier Dogwood and Creeping Mahonia.

Reedville Historic District

Fishing Village and Historic District

You might spot Squareback Marsh Crab and American Trumpet Vine.

Relay

Civil Engineering and Family Friendly

You might spot American Tuliptree and Eastern Tiger Swallowtail.

Revonah Manor Historic District

Architectural History and Arts And Crafts

You might spot Spotted Lanternfly and Canada Goose.

Rhinebeck Village Historic District

Architecture and Charming

You might spot American Cancer-Root, Ring-Billed Gull, and Water Caltrop.

Rhodes Street Historic District

19th Century Homes and Architectural History

You might spot Spotted Lanternfly, Duck, and American Robin.

Ridgewood Historic District

Architectural Heritage and Canton Ohio

You might spot Blue-Ringed Dancer, Bee, and American Rubyspot.

Rim Village Historic District

Crater Lake and Family Friendly

You might spot White Pasqueflower and Clark's Nutcracker.

Riverside Drive–West 80th–81st Streets Historic District

Architecture and Beaux Arts

You might spot White Snakeroot, Rock Pigeon, and Eastern Gray Squirrel.

Riverside-West 105th Street Historic District

Architectural Photography and Beaux Arts Architecture

You might spot White Snakeroot, Eastern Gray Squirrel, and Rock Pigeon.

Riverton Historic District

American History and Artisan Crafts

You might spot Hobblebush, Pink Lady's Slipper, and Red Trillium.

Riverview Historic District

Alabama History and Architectural Preservation

You might spot Pearl Crescent and Oriental False Hawksbeard.