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

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

An astounding collection of medical specimens, including bits of President Lincoln.

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

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

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

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

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

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

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

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

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

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

An outlandish shoe shaped house built by an eccentric millionaire.

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

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

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

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

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