A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Make it an offering.

A giant Troll lurks under one of Seattle's oldest bridges.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Art Deco stylings conceal the true nature of this bridge.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The ancient tomb acts as a calendar that keeps perfect time.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The shared home of a utopian commune that practiced "free love" a century before the hippies.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Odd outsider art installations surround a Gold Rush-era ghost town.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.