Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

A building so large that it has its own weather.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

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

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

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

A historic, century-old house plopped along the perimeter of Houston's ballpark.

This steamer is known as "The ship that built Cleveland."

Inside the Wayne County airport is an amazing collection of lights and sounds.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

20,000 pieces in a Frank Gehry-designed building.

At this airport "microcinema," you can catch a film before you catch a flight.

Large tower used for simulating radiation of Hiroshima bomb and the tallest object ever relocated.

The contents of this safe survived a 37-kiloton nuclear bomb.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

A picture-perfect town, perfect for blowing up.

A facility built in 1992 for an underground nuclear test remains in place today.

A controversial memorial at the place where Captain Cook met his violent end.

A pocket of jungle amidst urban expansion in Panama.

This neoclassic cathedral also houses what is believed to be the oldest clock in the Americas.

This fortress in Honduras was built to resist pirates, but its builders had more to fear from the British.

The only castle in North America to ever house European sovereigns.