A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

This museum houses two of Mexico's most impressive Aztec monoliths.

These subterranean models show Mexico City's central square during three different eras.

A massive volcanic plug is now a protected area that hosts a number of bird species.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

The blinking light atop the iconic landmark has been sending secret messages for decades.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

Pay your respects to departed pets, both celebrity and otherwise.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

The only presidential monument to display a late POTUS's actual casket.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Eighty million natural history specimens call this gargantuan museum home.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.