An avant garde art museum at the University of Chicago.

An antiquated German apothecary on Chicago's North Side.

A lush green oasis in the middle of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

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

There must be a pun in this haystack somewhere...

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Elevated freight railway turned wildly successful urban park.

A celebration of capitalism in Midtown.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

One of Ireland's most infamous prisons for rebels including men, women and children.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The oldest public library in Ireland.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.