Burial site more than 300 years old.

A maritime museum holding the remains of Blackbeard's pirate ship.

A historic coal mine that doubles as a museum and tourist attraction.

America's post-nuclear-attack chambers of Congress.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Breathtaking and huge 430 year old maps of Italy.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

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

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

The world's largest fully steerable radio telescope.

Historic Hull Street was actually the first street with a proper name in the Boston area.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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