Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

A surreal statue honoring Prague's favorite literary son.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The world's second-largest sundial, made entirely out of stone.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Cliffs full of fossils at the portal to England's Jurassic Coast.

Sip cherry liqueur at a bar dating back to 1840.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

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

A museum marks and documents the site of the Titanic's launch.

A series of stained glass artworks that depict images of the hit TV show.

These engineering masterpieces are a dominant feature of the Belfast skyline.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An incredibly well-preserved piece of ninth-century Viking poop.

3,000 market stands in five former Zeppelin hangars.

The reconstruction of this prominent building fulfilled a long-written command.

"There's nothing there," and other lies the KGB told us.

Climb to the top of its spiral spire for spectacular views of Copenhagen.