These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

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

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

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A layered tribute to the work of mosaicist Isaiah Zagar.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

A forsaken wonder in the middle of the East Side neighborhood.

A museum preserving one company’s history of preserving food.

A building shaped like the Army Corps of Engineers logo, because why not?

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.

The most decorated dog of World War I is preserved in the Smithsonian.

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

The angel of death appears to weep black tears at this grave marker.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Three prestigious academic collections come together to create a world-class natural history museum.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!