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

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

"The Most Boring Road in the State."

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

The world's longest known cave system.

The face of a woman pushes its way through the earth.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Legends surround this jagged rock formation in the New Mexico desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A flooded Mexican cave that hides a river beneath the water.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The large collection of pre-Columbian pottery might make you blush.

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

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Statue dedicated to the star of an old television show.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.