Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

This semi-hidden Manhattan restaurant is based out of a loading dock.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

World-famous, Pink's still manages to keep its prized cult fetish status.

A plaque honors Miami's sister city in the Canary Islands, inviting one to reflect on their place in the world.

The world's largest private aircraft collection.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

The final resting place of a wealthy landowner who helped create the largest public park in Western Massachusetts.

The Connecticut village named for its subterranean thunder.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

An abandoned church gets a second life as a massive beer hall and event space.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.