The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

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

Ship skeletons haunt Baltimore's waterways.

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

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

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

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

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

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

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

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

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

An innovative local park built from an abandoned sewage treatment plant.

A sweet symbol marks the place where torturous executions were once carried out.

Possibly the world's smallest museum is home to one exhibit that sheds light on the capital city's dark criminal history.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

A former telephone box found new life as a photo booth and charity fundraiser.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The colorful stairs are made with marble from the world's major quarries.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.