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

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Stolen goods adorn the organ at Old North Church.

These Nubian pyramids are strange and unique, even by pyramid standards.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

This star-shaped military outpost is now simply trying to protect itself from neglect.

A submerged archeological park still holds the wonders of a Roman Sodom.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

Semi-mystical manmade towers of rocks decorate this rocky seaside.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

Glacial erratic or man-made dolmen? It probably wasn't druids.

A mecca for India's Jains.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

A valley of unique erosion patterns lends to a view like nothing on Earth.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

Take a drunken tour inside the world's largest known geode.

This floating cinema brings new meaning to the phrase "going out" to the movies.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.