In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Meet some of the most prominent figures in Black history through life-sized wax models.

Once America's tallest structure, now a Baltimore landmark.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

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

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A remote horde of architectural treasures fit for Indiana Jones.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

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

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

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

Ship skeletons haunt Baltimore's waterways.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

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

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An eerie, decaying ghost town destined to fade into the forest.

A priceless collection of the Nation's cryptologic history.

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

Bizarre Cavern.

An astounding collection of medical specimens, including bits of President Lincoln.