A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

A layered tribute to the work of mosaicist Isaiah Zagar.

This elaborate towering structure was once famed for its revolutionary height.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

"We Seceded Where Others Failed."

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A museum and shop on Bourbon Street located in the French Quarter.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The stone labyrinth in this New Orleans city park was laid to symbolize healing in the wake of Hurricane Katrina.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

Thousands of well-dressed mummies below a monastery.

Cemetery featuring rare glass-fronted columbarium.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A Museum of Holography frozen in 1974.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

The first artificial white water river course in North America cuts right through an Indiana city.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.