This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

A bronze ballot box stands at the spot where Susan B. Anthony voted illegally.

A living archive of urban activism and space reclaimed.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This overlooked gem outside Niagara Falls preserves and celebrates Iroquois culture.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

Dedicated to preserving the history of free Black communities in Brooklyn and beyond.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

This abandoned Victorian-style house was built in 1884.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

This improbable contraption was passed down through five generations of industrious Tennesseans.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Prehistoric animals decorate this popular outdoor park.

During the holidays, a vintage subway train whisks New Yorkers back in time.

A rapidly disappearing authentic bit of the old south.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

This lab's maddening silence is good for business but bad for sanity.

A huge musical instrument played by the ocean.

Where America's first doomsday cult awaited the end of the world.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.