While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

Internationally recognized group that works to protect the wolf and educate the public about its plight.

This whimsical stacked cabin looks like something out of a children's book.

11,500 year old little girl found buried in an ancient fire pit.

Research missiles and rainbow auroras at the world's largest land-based rocket range.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

A hidden alley in urban Baltimore is a haven for graffiti artists.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This free, take-a-book shop seems like a trick but isn't.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Eighteen miniature death-scene dioramas.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

This Upper East Side apartment co-op was designed as a tuberculosis sanitarium.