At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

These unusual rooms on wheels are holdovers from the 1960s.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Enter the cabin of a life-sized Hindenburg replica.

This splendid tomb may look fantastic, but there's nothing in it...

A wall of chewing gum moonlights as collective art.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

Copenhagen's celebrated theme park and gardens.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

An apparition of Virgin Mary in Herzegovina.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

Bridge that died in war and was resurected.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

A war-torn Olympic relic is being overtaken by graffiti and nature.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

This one-time health resort was used by aristocrats around the world.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A miniature train-ride through Slovenia's largest cave system.

The "dragon babies" of southeastern Europe.

This massive subterranean fissure is known as the "underground Grand Canyon."

This abandoned Slovenian military barracks has become a punky-political art squat.