Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

The narrowest house in Buenos Aires is less than 10 feet wide.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

The best place to send your postcards home from Antarctica.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

A unique market that brings together various goods and cultures.

Every Sunday, this Thai temple in Berkeley serves a backyard brunch.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

The mysterious round rocks of Schooner Gulch.

The southernmost outpost of the Russian Empire in colonial America.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A living time capsule of the 1960s Richardson Bay water-front.

A replica of the first public theater built in California.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

The capitol city's oldest existing cemetery.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

A hidden subterranean installation offers a view of the sky.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.