In this cemetery stands the country's first public crematorium.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

A legendary boxing venue and ring featured in Rocky V.

Where the oil industry began.

Pittsburgh's literal underground railroad.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This might just be the TARDIS of bookstores.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

Located within a historic park, the beacon is the oldest standing structure in Miami.

Former villa and estate of James Deering developed to preserve native tropical forests.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

An overgrown collection of miniature buildings still stand as evidence of one couple's obsession with The King.

An eight-sided home built during a brief octagon craze in the 1850s.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

A small Richmond island dotted with the remnants of hundreds of years of history.

The skeletal white beams stand as a monument to religious dissent.

An alternate history park where the Union Army loses the war... to dinosaurs.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

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