Eighteen miniature death-scene dioramas.

Brain collection and database that narrows the gap between man and animal.

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

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

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

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

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

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

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

A priceless collection of the Nation's cryptologic history.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.