Impossibly life-like natural history models created out of glass by a father and son.

The infamous Boston Mob ran rackets from an office here in the 1970s.

A spooky and decrepit mental health facility is slowly being replaced with newer digs.

Over fifty whirling pools left by the glacial age.

World War II bunker still standing on the New Jersey beach.

Why have you never heard of the second most popular tourist site in New York?

A wunderkammer hidden on the top floor of the Hartford statehouse.

Huge masonic hall in Philadelphia with lavishly themed rooms.

Dr Barnes' $25 billion private collection of art and arboretum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

137 graves holding New England's earliest residents.

100 massive sculptures in the Hudson River Valley.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Mansion and shopping center used in the 1975 film "The Stepford Wives."

Home of Philip Johnson, one of the 20th century's most influential architects.

Final resting place of two dozen New York City harbor ships.

Failed state-supported institution meant to rehabilitate students with intellectual disabilities.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

The home of aviation trailblazers, in a remote corner of the big city.

Waterway populated with abandoned projects, including a submarine.

A tiny islet just off Long Island offers a wealth of infectious curiosities.

Come for the pastrami, stay for the million-dollar art.

Series of storm drains connected to a dark urban legend.