Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

Explore the legends surrounding these mythical sea creatures inside this museum.

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

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

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

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

Ship skeletons haunt Baltimore's waterways.

This abandoned mine and power plant was built atop land once given to Revolutionary War soldiers.

America's post-nuclear-attack chambers of Congress.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

An abandoned 1920s school with a mysterious history.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

One of the last active volcanoes on the Eastern seaboard.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

America's first public mental health facility.

An original apothecary from 1792.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

An emerald-green grotto just a short trip from Austin.

Bizarre Cavern.