A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

A 14th century castle built on the seat of a mighty giant.

An overgrown and abandoned tuberculosis ward resides in the midst of a quaint modern neighborhood.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

The alley connecting two of country music’s most historic venues has a rich history of its own.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The site of the worst mining disaster in Ohio's history.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This picturesque Victorian ghost town was once a thriving mill community.

The first memorial dedicated solely to the Black troops who fought for the Union.

This former asylum for Black Americans is haunted by its history of violence and racism.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

New Preston and Kent, Connecticut - where Friday the 13th, Part 2 was filmed.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

Three acres of mythology-inspired sculptures are visible from the highway.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

Legend says this rock was once a chopping block for public executions.

The oldest stone house in Paris was built by its most famous alchemist.

This 7,000-year-old megalithic wonder covered by a Franco-era reservoir emerges in times of drought.