A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This everlasting lightning storm may be the world's largest generator of ozone.

This former shopping center now acts as the eccentric lair of the Venezuelan secret police and their shadow prison.

With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Enormous sandstone towers loom within a Czech forest.

Tiki luxury on Nob Hill.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

A stranded woman lived alone on this remote island for 18 years, inspiring the great children's novel "Island of the Blue Dolphins."

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

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

Largest outdoor staircase in the United States.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

A crumbling cliffside ruin hidden in the woods.

A cool dive bar, off the beaten track.

Nearly three tons of weapons from the Vietnam War still remain in this small, hidden museum.

There is nothing like a religious festival celebrated with blow-up sledgehammers.