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

The massive machine creates cracking displays of indoor lightning.

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.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Catacombs turned marketplace.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

Send a postcard while vacationing with Satan.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

Two mermen, eternally spitting into each other's mouths.

This once luxurious Catskills resort is now a haunting ruin.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

All that remains of the once-booming chain is a single orange-roofed restaurant.

This throwback amusement park is home to rides and unique storybook figures from the past.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.