The highest point in Washington state is a volcano covered in glaciers.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

An ice cream parlor chain that caters to vegans and pinball fans equally.

An obscure waterfall that looks like something out of a fantasy novel.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A short hike into the mountainside forest reveals a decaying 1890s town.

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

A whimsical village of unique treehouses resides in a Washington forest.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

Couple's personal collection of pinball machines turned public pinball museum.

Seattle's own bad art museum located inside Cafe Racer.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

This bridge provides safe passage for squirrels.

The video game-themed street art first popped up in the French city.

The Sun King's military models, saved from the Louvre.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.