After years of being casually peed on by humans, this tree is peeing back.

Twisted buildings adorn the banks of the Rhine river.

The last bastion of Roman presence north of the Alps looms over a German town.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

A former ironworks that was the first UNESCO industrial site.

This former steel and coal plant is now a neon-lit industrial fantasia.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Home to a protest movement, a bombing, and a dramatic change in labor history.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Ornate limestone building now filled with geologic specimens, and more.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

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

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

First planned industrial community in the United States.

In one Chicago park, a trio of werewolves are waiting to devour their fallen brethren.

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

The face of a woman pushes its way through the earth.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

An art deco ice cream shop covered in vintage train station tiles.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

A European-style bath house in Chicago.