A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Massive galleon from a box-office bomb docked in Genoa.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Why have you never heard of the second most popular tourist site in New York?

Museum preserving torture methods from the past.

This bridge was constructed from the rubble of the infamous Bastille.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The glowing blue Nymphaeum of Emperor Tiberius.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

An artist's cute bronze subway sculptures belie his violent artistic past.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Set sail on a small scale.

The return of something once considered a basic part of life.