This working class sculpture pounds his hammer all the livelong day.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

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

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

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

A wall of chewing gum moonlights as collective art.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A walk through the historic city center, under the streets of Seattle.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The largest police museum in the western United States displays the evolution of crime-fighting Seattle.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

A popular oddity on display in a stately building, offering a symbolic commentary.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.