An early-19th-century hotel with a past that is steeped in the Civil War.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

A dazzling display of lights and crystals.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

This steamer is known as "The ship that built Cleveland."

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A CT scan revealed the identity of this 3,000-year-old mummy that everyone erroneously thought was female.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

The site of the first "historically true" UFO encounter in the U.S.

The remains of the furnace and iron works that produced the massive Hudson River Chain still stand in the woods of New York.

A winding, cliffside stretch of road overlooking the Delaware River.

At this farm in upstate New York, the former president plotted his reelection campaign.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

The Catskills retreat of naturalist writer John Burroughs.

The Hudson River School comes alive at this palatial estate.

A living antique aviation museum in the historic town of Red Hook, New York.

The monumental steeple on Amherst College's campus has no church attached to it.

Resonating tubes make music from highway overpass.