This sanitorium-turned-asylum-turned-prison is now abandoned and a hotspot for enjoyers of the paranormal.

Once home to a wealthy ironmaster, this 19th-century mansion now holds unique relics from Blair County's past, and perhaps the spirits of its former occupants.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

A comprehensive collection of toy and model trains, largely from the mid-20th century.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Once forgotten, this strip of sand was a rare beachside haven for Black Americans in Atlantic City.

Vintage cars and motorcycles race for glory in a throwback motorsport celebration on the Jersey shore.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A small, fascinating fire museum hidden in plain sight in an administrative building.

This rare, carefully curated collection showcases the history of neon inside a grandiose Elks lodge.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.

Abandoned blast furnaces are an enduring reminder of Scranton's once booming iron business.

A museum dedicated to the history of electric interurban transit near the home of the first electric trolley system in the United States.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

On the Oregon coast is a natural hole that seems to be draining the sea.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A memorial to an ill-fated Holy Land mission once described by Mark Twain as “a complete fiasco.”

The largest wooden building in the world now houses a fascinating collection of aircraft.

A Roman-style column in Oregon hides a spiral staircase inside.