The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

An office built to look like a giant basket.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

Could it have picked a better place to land?

The museum chronicling a treasure hunter's dream, fulfilled.

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

A monument celebrating the idea of reaching inaccessible places.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A mysterious castle built as a monument to lost love.

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

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

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

Some islands... they come, they go, especially on Lake Travis.

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

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

A self-built castle made by a mysterious man.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A museum and tribute to a brave profession.