Ancient pueblos built into the base of a natural canyon wall.

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

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

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

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

A bit of retro transportation flair preserved in the world's largest department store.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

One of the ghostly stops along Route 66.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Legends surround this jagged rock formation in the New Mexico desert.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The Boston square dedicated to the dark poet who was born nearby.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bizarre roadside attraction and the first instance of miniature golf in the world.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

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

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

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