The first park built over a freeway is a brutalist masterwork.

A wall of chewing gum moonlights as collective art.

This former coal gasification plant found a curious second life as a popular public park.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.

The world’s oldest military museum has remained largely unchanged since the last days of the Austro-Hungarian Empire.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

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

Hear the quietest sound from across the dome.

This coffee shop lies hidden beneath a historic church.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.