Sumthin's User Profile - Atlas Obscura
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Linthicum Heights, Maryland

Urology Museum

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.
Dundalk, Maryland

Fort Carroll

This abandoned sea fort has become an accidental bird sanctuary.
Washington, D.C.

Holt House

There's a crumbling old mansion inside the Smithsonian National Zoo.
Washington, D.C.

Overthrust Fault

A surprising, but overlooked example of geology in the middle of the nation’s capital.
Washington, D.C.

National Bonsai Museum

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.
Washington, D.C.

Ruins of the McMillan Sand Filtration Site

An Industrial Revolution-era public work that purified water using nothing but sand.
Washington, D.C.

Kenilworth Aquatic Gardens

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

Catacombs of Washington, D.C.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.
Silver Spring, Maryland

Acorn Park

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.
Silver Spring, Maryland

'Coastline' Wave Pool

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

Grove of Remembrance

This grove was planted more than a century ago by the War Mothers of World War I.
Ellicott City, Maryland

St. Mary's College

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.
Baltimore, Maryland

Round Falls

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.
Ellicott City, Maryland

Daniels

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