The summit Roosevelt conquered before he descended to become The Chief.

A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Reforestation in action is the main attraction in this abandoned quarry.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

A classic roadside attraction on Vermont's historic Route 5.

This abandoned ironworks was once the most important military supplier in America.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

Once America's longest-manned military fort, now an abandoned hulk.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

A former seaside jewel built for the everyman is now simply a neglected art deco fortress.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

An abandoned castle owned and ignored by Masons carries a cursed history.

A formerly abandoned mental institute, now back in business.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.