These subterranean storage areas hold emergency water reserves.

This painted marvel is San Francisco's 400-foot ode to urban biking.

This eatery transports diners to a place that no longer exists: East Germany.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

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.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

An essential stop before plundering, BYO Cutlass.

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

The miraculous hydrant that saved the Mission District in 1906.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

The second oldest continuously operating bar in Louisiana.

The only rotating bar in New Orleans has been slowly spinning since 1949.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A Bibliophile's Dream.

The magic's in the hole!

Quite simply the largest tree in the world (by volume).

San Francisco's newly reopened hands-on science museum.

The curiosities and wonders of pharmacy in a delightful historic building.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Tiki luxury on Nob Hill.

World-famous, Pink's still manages to keep its prized cult fetish status.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.