This historic bridge connects Whidbey Island to Fidalgo Island across whirlpool-filled waters.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

A surreal, Gaudi-inspired play space near an Anaheim community center.

This landmark building, from notable Los Angeles architects, is being restored.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

Built in 1890, this is the last remaining wooden fire bell tower in the United States.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

A magical sanctuary of mythological statuary.

A place to eat for on-the-run agents and espionage enthusiasts.

This striking art museum holds an amazing series of curiosity cabinets.

Statue dedicated to the star of an old television show.

The world's last remaining store of its kind.

The longest continuous lava tube in Oregon.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

These spectacular ruins were built by Spanish padres in the 17th century.

Of the many Jesuit missions in South America, this complex is one of the best preserved.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.