In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Historic funicular railway, believed to be the shortest railroad in the world.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

The "Prussian Versailles" that is as glorious today as when it was built.

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

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

Real bones which are said to have belonged to a Polish dragon.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The most visited, and possibly most controversial, museum in Germany.

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

The site of Paul Revere's historic two lantern warning.

This landmark cemetery in Boston was created more than 300 years ago.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

Tragedy on Little Brewster Island memorialized.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

100 massive sculptures in the Hudson River Valley.

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

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A formerly abandoned mental institute, now back in business.

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