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.

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.

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

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

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

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

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

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

A common entry point to the Griffith Observatory trail holds its own wonders.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

This painted blacktop brings the classic arcade game to life.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This lonely rock has been turned into a character loved and feared by children.

The world's first purpose-built indoor shopping mall opened in Sweden in 1955.

This lake-bound geographical marker sits at the point where three European countries intersect.

This fantastical icy castle is built anew every winter.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.