A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

Illegal drag racing two stories beneath Chicago’s streets.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A science teacher's dream.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

Home to items never before seen by the public.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

A pair of gigantic baby heads greet passengers at Atocha Station.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This lucky bronze frog was gifted to Madrid by a casino.

A lush indoor jungle fills this bustling Madrid transportation hub.

Commonly acknowledged as the only public monument to the Devil himself.

An ancient Egyptian temple in the middle of Madrid, Spain.