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

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This private residence was the template for one of the most beloved television homes of all time.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

Golden Gate Park's historic collection of plants.

The remains of a ruined mansion memorialize the 1906 earthquake.

In this century-old literary safehouse, print is alive and well.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A 300-ship graveyard, with a few still visible at low tide.

A modern mechanical planetary system, part of a 10,000 year clock.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

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

Tiki luxury on Nob Hill.

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

A museum befitting the city responsible for supplying the majority of the world's LSD.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

One of the best absinthe distilleries in the United States.

This (occupied) house is 10 feet wide and full of spite.

This London marker celebrates the spot where the world-famous English band was founded.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.