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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

An essential stop before plundering, BYO Cutlass.

The model behind the iconic 3D test model.

Three plaques mark the spot where the "forgotten father of broadcasting" worked.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

Guarded by the Angel of Grief, the Stanford family tomb attracts an odd mix of halloween revelry and somber contemplation.

A hidden world of exotic succulents and cacti.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

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

This castle tower in Wales leans at a steeper angle than the Leaning Tower of Pisa.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

This prehistoric site is home to the largest shell midden cluster in Japan.

This atmospheric pre-war building is home to one of the few manually operated elevators left in Tokyo.

The tallest city hall in the world offers an excellent bento box.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

Japan’s tallest Godzilla statue contains a piece of the original 1954 film within its base.

Luminaries from Albert Einstein to John Lennon once had a cup of coffee at Tokyo's oldest café.

This traditional Japanese shrine is dedicated to four Shinto deities.

This historic castle is one of the oldest and most impressive in all of Japan.

This small Japanese street is lined with figures, sculptures and a shrine dedicated to frogs.

Japan's first automaton went missing, only to be revived by the Osaka Science Museum.