The miraculous hydrant that saved the Mission District in 1906.

One of few lasting examples of the brief octagon craze that developed into folly.

Faceless white figures loom over the city from the rooftop.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

A psychedelic labyrinth on the San Francisco bay.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

Home to one of the world’s largest collections of model yachts.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

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

This nine-story building can be played like an instrument.

The first statue of Christ sleeping on a bench in the United States confused its affluent parish.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

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

Three million year old fossils are exposed for all to see on this Icelandic shore.

This elegant arc of a waterfall marks a religious turning point.

Akureyri is home to an oversized can of one of Iceland's favourite beers.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.