Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

Elvis's own personal tropical hideaway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Giant, friendly pelicans in Central London, the most unlikely of places.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This 1920s Dutch barge is now a floating bookstore.

London's smallest police station is barely the size of a phone booth.

Catacombs turned marketplace.

Eighty million natural history specimens call this gargantuan museum home.

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

A tongue-in-cheek arcade where the games are based on everyday life.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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

The most confusing clock in New York.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”