Locals dubbed it the "Owl Building" because of its bird-like appearance.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Faceless white figures loom over the city from the rooftop.

Recovered from the brink of extinction, at home in the Financial District.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

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

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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

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

This shop specializes in oddities and Victorian-inspired wonders.

An essential stop before plundering, BYO Cutlass.

Tiki luxury on Nob Hill.

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

A psychedelic labyrinth on the San Francisco bay.

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

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

Only hotel where you can legally launder money.

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

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A Chicago Movie Palace Lost to Time.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."