This too-low North Carolina railroad trestle is still a notorious big rig executioner.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The FBI's urban training course may have the highest fake crime rate in the world.

This metal disk commemorates the birth of a historic American holiday.

Secret North Korean passage discovered below the world's most dangerous border.

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.

South Korea's largely symbolic, barely used gateway to the North.

Peace Park and the Atomic Bomb Dome.

One of Japan's most famous sights, the bridge was originally built in 1673.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

This legendary urban waterfall creates a dazzling display of rainbows.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A centuries-old church stands as a testament to Boston's "father of architecture."

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

A historic bridge with a lovely acoustic anomaly.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This supermarket is suspended 25 feet above an interstate highway.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.