A creepy steel gremlin has protected the Bay Bridge since 1989.

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

Massive prehistoric mammals used these stones as oversized scratching posts.

Climb 200 stairs up the tallest lighthouse on the West Coast for an unbeatable view.

A striking eight-story-high obelisk perched on a coastal California cliff.

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

A historic office and commercial building located in the heart of downtown San Francisco.

The only place in the world where vehicles for an obsolete form of transportation are still built.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

The historic building's ornate stained glass fixture has survived the devastating 1906 earthquake, ensuing fires, and multiple redevelopment attempts.

The last used bookstore in Downtown San Francisco is one of the smallest bookstores just about anywhere.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

A man-made island in scenic San Francisco Bay.

Russian history in San Francisco.

The site of a tragic massacre that spawned a multimedia franchise.

Some of the world’s most popular songs came out of this building.

Perhaps the most storied New York City eatery, Delmonico’s reshaped American restaurants.

This monument is dedicated to Balto, the heroic Alaskan sled dog.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

There are owls with glowing eyes in Herald Square.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.