This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

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

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

The world-record holder for the longest bridge stretching continuously over water.

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

Alexander Hamilton’s creation caused quite a bit of controversy.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

The only home of the famous French impressionist painter open to the public is now a museum and bed and breakfast.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.