These abandoned waterworks are crumbling into the Potomac River.

An Industrial Revolution-era public work that purified water using nothing but sand.

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

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

This former asylum for Black Americans is haunted by its history of violence and racism.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Two dozen pinball games hidden away inside a most unlikely location.

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

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

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

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

These lush botanical gardens employ the most purrfect pest control force.

In which a local geological marvel becomes a quaint roadside attraction.

A failed piece of Orientalism has become the proud symbol of a community.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

The oldest farmer's market in America is so ancient it was approved by the King of England.