A haunting tribute to pioneering photographer Clover Adams.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The most decorated dog of World War I is preserved in the Smithsonian.

The walls of the iconic dome are hollow and have a secret stairway.

There’s a hidden military meme engraved on the World War II Memorial.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

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

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

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

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

Purdue students would lean over this iron fence to skirt campus rules against smoking and courting.

Walk in the footsteps of the famed astronaut at Purdue University.

The final resting place of New Orleans' most famous voodoo priestess.

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

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

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.