Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

A hotel and restaurant serving as the mecca of kitsch.

The world's first motel is now an administrative building for an apple farm.

A deserted hodgepodge of experimental structures designed by nearby university students.

This collection of hand fans doubles as a history of femininity.

A huge work of Burning Man-inspired outsider art on the grounds of a California winery.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

A tree grown from astronaut seeds which were exposed to cosmic rays.

The oldest continuously operating church in California.

The first safe in this California town had to hold all the gold.

This remarkably simple jail went over a century without an escape.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

World's largest collection of serial killer artwork and other macabre exhibits.

Medical and zoological curiosities for sale.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.