This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

The most powerful waterfall in all of Europe.

These enlarged egg sculptures represent the native birds of eastern Iceland.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Three columns of volcanic rock shoot out of the ocean.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Early prototype for Frank Lloyd Wright's Guggenheim.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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

Golden Gate Park's historic collection of plants.

The remains of a ruined mansion memorialize the 1906 earthquake.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.