The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

America's oldest archaeological site or a muddled case of wishful thinking.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

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

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Every president in history is immortalized in bronze in downtown Rapid City.

A relic of roadside lore and perhaps the first of its kind in North America.

A ghost town now swarming with dozens of prairie dogs.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

This small shop walked so America could run on Dunkin'.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

Narrow gorges and deep pools created by long-ago glaciers.