Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

A layered tribute to the work of mosaicist Isaiah Zagar.

The home of the first American-born saint is one of the only curved buildings in New York.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

It was founded by Ralph Nader to educate the public about an often-maligned area of law.

This monument commemorates an aeronaut who allegedly flew a plane before the Wright brothers.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

The museum chronicling a treasure hunter's dream, fulfilled.

A historic landmark and museum filled with curious objects representing the history of Key West.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

This nostalgic blast from the grooming past is also a working barbershop.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

137 graves holding New England's earliest residents.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

Underground tunnels remain beneath this abandoned mental asylum.

This abandoned artificial island off the coast of New York City is now home to dozens of harbor seals.

Ecuador’s historic seat of government has been quietly looted in recent decades, and no one knows how or by whom.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

China's most famous acrobatics act.

A prestigious learning institute of old Shanghai.