Home to items never before seen by the public.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The prototype for all Nazi concentration camps.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."