A Beaux-Arts triumph set to become Ford's innovation campus

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

If astronomy had a ghost, it would look like this observatory.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A Saint Nicholas-themed ghost town in the Mojave desert.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

The longest living non-clonal organisms on Earth.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

The anatomical-pathological collection of a man who changed surgery.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

The television series' iconic giant foot was borrowed from this classical painting.

One of the few surviving street funiculars in the world.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

After years of slow decline, a derelict Gothic castle is now being restored to life.

Caves famous for the dragon-slaying saint who lived there.