This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

A forsaken wonder in the middle of the East Side neighborhood.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

The lost town of Neversink, sunk by New York City.

This Central New York ghost town was once a prosperous railroad community.

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.

Cryptic messages embedded in the New York City sidewalk.

Avoid gangster interaction while window-shopping.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

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

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Elevated freight railway turned wildly successful urban park.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Three hundred years of preserved Spanish colonial history in San Antonio.

These boots are made for selfies.

A priceless collection of the Nation's cryptologic history.

This collection honors the iconic, and proudly American lighter that just won't quit.

Take a trip back to the 1950s and the heyday of the road trip along Historic Route 20.