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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Once America's longest-manned military fort, now an abandoned hulk.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

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

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The glowing blue Nymphaeum of Emperor Tiberius.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Come for the speed, leave in love with the desert.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

Three prestigious academic collections come together to create a world-class natural history museum.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

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

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A wunderkammer hidden on the top floor of the Hartford statehouse.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A popular European tradition makes its way to the states on one of America's most famous bridges.

The location along the shores of the Great Salt Lake of what was once called, "The Coney Island of the West", now sits barren due to arson and time.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

A luxuriant botanical garden below sea level.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

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

The intriguing personal collection of a professional demon-chaser.