This sculpture garden in Death Valley makes you feel like you've slipped into some alternate reality.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

The sun acts as a key that only fits this giant keyhole twice a year.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

The unbelievably opulent home built for an infamous newspaperman.

San Diego's most historic and haunted home.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

This massive redwood tree has a hole in the base big enough to drive through.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

The rocks in this arid basin leave trails of movement behind them.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

Wayne Newton's sprawling estate is now open for visitors to catch a glimpse of his "heart and soul."

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A cake-themed art installation tucked away in historic Chinatown.

This collector's home is a constant work in progress.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.