The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

This large boulder was used as a lookout point by Revolutionary War militiamen.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Peak named for an old man who liked to run in the nude.

A wild trout fishery in Arkansas.

The Man In Black grew up in a large agrarian community established by the federal government in the Great Depression.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

A stone pillar commemorates the surrender of the extraordinary Apache leader.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The first permanent memorial to a unique secret weapon of World War II.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

In Tucson a giant metal snake helps pedestrians cross a busy highway.