Tiki luxury on Nob Hill.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

A modern mechanical planetary system, part of a 10,000 year clock.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

A psychedelic labyrinth on the San Francisco bay.

A small medical museum with a recreated doctor's office.

A hand-built folk art installation covered with messages of God's love.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The unusual patterns in this rock formation result from two distinct modes of weathering.

One of the last free public hot springs is decorated with hippie art.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Mexican food and folk art.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

A museum dedicated to the decorative arts from the 16th through 19th centuries.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

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

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The contents of this safe survived a 37-kiloton nuclear bomb.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.