Dine amidst exotic plants at this former royal greenhouse.

This cubist Vienna church building looks like some sort of alien stonehenge.

This former insane asylum now holds a pathological anatomy museum.

Handsomely crafted representations of our round planet.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

A hands-on traveling collection of the innovative devices of yesteryear.

The world's largest collection of witchcraft regalia.

A snapshot of the city's fascinating voodoo culture.

Where beautiful signs live on forever.

An abandoned relic of the city's failed experiment with below ground transit.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

In DeWitt, New York, a blanket-wrapped gas station makes a creative statement on global dependence on oil.

A hand-built folk art installation covered with messages of God's love.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

One man's swirling six-acre monument of stone.

A terrific purveyor of natural history objects and curios.