The celebrated eyesore created by starry-eyed sweethearts.

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

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

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

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The first green space constructed on an elevated viaduct.

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

Detailed facade of a brownstone in Boerum Hill.

Mountain where Jesus was first tempted by the Devil.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Slyly buy a shake in the Parker Meridien lobby.

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.