Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

This mouldering abandoned mental hospital was once a center for progressive healing.

A cave's rare beauty held a cavernous secret hidden underground.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

A Yale University president wears full samurai garb in one of America’s oldest cemeteries.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

137 graves holding New England's earliest residents.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

This lavish room at NYC's French Embassy is a rare relic from the end of the Gilded Age.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

Offbeat arts organization that hosts exhibitions, events, and explorations.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

A Gothic-style abode built to accommodate the church's three resident peacocks.