One of the last few period-correct, hand-operated canal locks in the country.

Once home to a booming 19th-century oil town, the park now houses a World War II submarine memorial complete with a torpedo.

The site of the one and only battle of Lord Dunmore's War.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

The failure of one component toppled this entire bridge during rush hour.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

Visit a replica of the estate where Aaron Burr allegedly plotted a treasonous scheme against the United States.

Rare recess caves fill this unbelievably beautiful Ohio park.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

An abandoned asylum incorporated into a college campus.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."