The world's first ice hotel is still one of the most elaborate and beautiful.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

The "Prussian Versailles" that is as glorious today as when it was built.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

An eerie, derelict amusement park in Berlin.

Metro station with a claim to rock n' roll fame.

Berlin's old airport.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Cold war icon and onetime "hole" in the iron curtain.

The most visited, and possibly most controversial, museum in Germany.

This artificial archipelago was supposed to resemble a map of the world.

Whitewashed mosque contains the world's largest carpet.

The opulent car collection of an eccentric Sheikh housed in his own private pyramid.

The world’s largest LED display, built over an F1 race circuit.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

Watch the newest land on the planet form before your eyes.

A controversial memorial at the place where Captain Cook met his violent end.