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

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

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

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

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

This abandoned sea fort has become an accidental bird sanctuary.

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

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

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

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

A hidden alley in urban Baltimore is a haven for graffiti artists.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Atop this media building, two hives containing more than 30,000 bees keep the surrounding area vibrant.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Home to items never before seen by the public.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The oldest continuously operating fish market in the United States.

This lovely pocket park is one of the most under appreciated in D.C.

A secret greenspace hides atop a Capitol parking garage.

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 lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."