Still standing despite its considerable slant, this tilted lighthouse has become a local symbol of resilience.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

Wooden sleds have replaced donkeys to cart goods around this utterly charming car-free village.

This mesmerizing medieval monastery-cave complex sits thousands of feet above ground overlooking a valley.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Its unique collection details the history of the state's svelte railroads.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

The world's oldest and largest museum of mass transit vehicles.

The skeletal white beams stand as a monument to religious dissent.

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

The best-preserved ancient theater in the world.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

This spectacular track has run continuously since 1882.

The world’s tallest outdoor lift stretches along the stone pillars that inspired the floating mountains in the movie “Avatar.”

The ornate structure is part of a building boasting more marble than the Vatican.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

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

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

In the middle of a remote desert town is a surprisingly opulent hotel.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

The fading, forgotten remains of a once bright and booming factory.

A lush indoor jungle fills this bustling Madrid transportation hub.

This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.