This “living museum” at UCLA exhibits thousands of plant species from all over the world.

An ultra-modern vista that has been featured in so many films the house is a celebrity in its own right.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

An abandoned 1930s gas station turned bustling neighborhood park.

Dozens of lights dangle from the branches of what may be the brightest tree in Los Angeles.

A library of rare occult books in Los Angeles.

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

A little barn in the middle of the city preserving Hollywood treasures since 1985.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

The last of its kind in the country.

Room 32 of the Alta Cienega Motel has grown into a shrine to the Lizard King.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

A fascist-era rural village abandoned since the early 1980s.

Southern Italy's spinning top village.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

The sunlight passing through the opening of this huge cave system creates a magical effect.

Geometry and mystery come together in an epic show of octagonal masonry.

Ride a boat through this magnificent underground world, which now doubles as a theater.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

An Italian hillside ghost town.

This church carved into the rocks is full of enchanting stone statues.

A fairytale-like medieval church perched atop a rocky cliff on Italy's "Coast of the Gods."

A small Byzantine church lost in the middle of the mountains of southern Italy.