A giant donut stands as a popular symbol of Los Angeles iconography.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

From the Difference Engine to the Cray-1, all under one roof.

An Aladdin's cave of old Silicon Valley tech.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

An extensive collection of ancient Egyptian artifacts and mummies.

This giant shopping mall still holds signs of its automotive past.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

800 apricot trees honor Silicon Valley's agricultural history.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

Chase waterfalls, hiking trails and more.

Built by the patriotic residents of Boonsboro in a single day.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

Scary stories haunt this wooden bridge.

This abandoned sea fort has become an accidental bird sanctuary.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

There aren't too many operational funiculars around, but Pittsburgh has two!

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.