This 317-ton walkable art installation is an homage to Korea's "City of Steel."

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

After 400 years of being closed to the public, this monastery's underground tunnels and secret garden are now a museum.

Past the hills and beyond the graveyard, this church feels extremely out of place.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.

One man's ambition created this psychedelic log home.

A roadside hotel that you can’t stop at. 

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

An Industrial Revolution-era public work that purified water using nothing but sand.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

A giant statue perched on dumpsters watches over the freeway.

In which a local geological marvel becomes a quaint roadside attraction.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

The oldest Naval chapel in the United States is home to an incredible collection of Tiffany stained-glass windows.

This 19th-century religious artwork was once highly controversial—because it was donated to the church by a divorcee.

Built in 1917, this building is home to the last working spring-loaded dance floor in Utah.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

An eclectic trailer park retreat in the middle of the California desert.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

This whimsical stacked cabin looks like something out of a children's book.

A strange, heartwarming, decades-old declaration of love on a New Hampshire roadside.