The national park was once a plantation estate.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

This grand gothic brewery has been pumping out suds for over a hundred years.

Ship skeletons haunt Baltimore's waterways.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

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

Explore the legends surrounding these mythical sea creatures inside this museum.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

An abandoned church gets a second life as a massive beer hall and event space.

Bizarre Cavern.

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

The development and impact of electronic media showcased in a picturesque farmhouse in Maryland.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

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

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

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

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

A priceless collection of the Nation's cryptologic history.

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

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