The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

The private clubhouse for the members of the Academy of Magical Arts.

Shop selling 500 flavors of soda has something for everyone.

Historic funicular railway, believed to be the shortest railroad in the world.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

A Buddhist theme park brings you a Buddhist version of Hell.

The final resting place of the great navigator, or maybe his brother.

The famous winding walk at Chartres is surrounded in mystery and myth.

France's most famous cemetery, with some of its most curious tombs.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Home to the "Circus" trees created by Axel Erlandson.

A hidden world of exotic succulents and cacti.

Concrete strongholds stand guard over the Golden Gate.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A 300-ship graveyard, with a few still visible at low tide.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A hidden subterranean installation offers a view of the sky.

Golden Gate Park's historic collection of plants.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A monument to the love people have for their pets.

Macabre astrological automaton clock dating to the late 1400s.