A slice of central Asia in the middle of Berlin.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A surreal museum of extraordinary industrial objects.

A fascinating insight into daily life in the Eastern Bloc.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

This German museum devoted to the simple wonders of salt is actually built over an old saltworks.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Thousands of abandoned statues of deities are taken to this hillside in southern Hong Kong.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

Climb to the top of the world's largest seated bronze Buddha.

This hulking behemoth is actually five interconnected towers built in the 1960s.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Ship-sized kinetic sculptural fantasy.

Pop culture has helped to keep this iconic British building from being destroyed.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Eighty million natural history specimens call this gargantuan museum home.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

One part local history, 99 parts gruesome haunted house.

A hands-off space for graffiti artists to hone and display their skills.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.