Underground tunnels remain beneath this abandoned mental asylum.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The widow of Benjamin Franklin's brother became the first female newspaper editor in the United States.

The final resting place of the famous Rhode Island lighthouse keeper who heroically saved dozens of people from drowning.

The only surviving fragment of the lost Narragansett Pier Casino.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

Abandoned Coast Artillery fort now serves as graffiti canvas and sightseeing vantage point.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The final resting place of New England's last "vampire."

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

Tragedy on Little Brewster Island memorialized.

Ornate and macabre headstone in one of the country's oldest cemeteries.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

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