Its diverse collection of computers and technology spans the ages.

This historic lighthouse was well known for the large number of women who served as its keeper.

Electronic inventions that resulted in products and systems we use every day are on display in this labor-of-love museum.

A Civil War Museum with some notable medical antiques.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

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

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

This abandoned Victorian-style house was built in 1884.

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

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

A priceless collection of the Nation's cryptologic history.

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

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

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

Arlington Cemetery exhibit dedicated to death and grieving.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Smack in the midst of coal country, this collection provides a peoples' history of Appalachian miners' heritage.

Two insane asylum bodies embalmed by an amateur.

Time travel with sweets across history at this research-based candy store.