Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

These fantastically named natural pools look like something out of a Scottish myth.

360° views of the city plus five floors of optical illusions and hands-on science.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

See massive fossils that are over 200 million years old in northeastern Arizona.

This sanguine boulevard was named after a deadly cowboy bar fight.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Ruins of a Carnegie family mansion on Cumberland Island.

The only working large-scale tea plantation in the United States.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Home to items never before seen by the public.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The celebrated eyesore created by starry-eyed sweethearts.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.