Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

A local landmark with generations of spraypainted messages, and more being added each day.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A bygone village occupation lives on via this quaint public chalkboard.

Abandoned Italianate architecture on the coast of Maine.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

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

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

The king of U.S. high points towers over every other peak on the continent.

Four-story concrete hotel never opened to customers.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

At the time of its completion, it was the tallest dam in the world.