Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

America's most famous piece of self-built architecture.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

One man's homage to the sun continues to grow like a glass fractal.

Resting place of Hollywood's immortals is also site of summer film screenings.

Shop selling 500 flavors of soda has something for everyone.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

The abandoned transportation hub hides within the Glasgow attraction it once served.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

Stonehenge has nothing on Castlerigg’s views.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

The stately remains of Llywelyn the Great's mighty fortress.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

This crumbling folly looks like an enchanted left over from Middle Earth.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

A remarkably well preserved tower dating all the way back to the Iron Age.