Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Visitors to this library are in for a real-world education in modernist architecture.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Cold war icon and onetime "hole" in the iron curtain.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

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.

Step inside Lucy, the world's largest "elephant."

Waterway populated with abandoned projects, including a submarine.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A crumbling hospital from the 1850s on Roosevelt Island.