A life-sized memorial to Harry L. Collins, the official corporate magician of Frito-Lay.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

This abandoned cemetery has a dark past of bodies buried over bodies.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A Nesting Doll of Churches.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A sculpture serving as an homage to Pope John Paul II.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The mark of the Devil's horns on a marble column in Milan.

Da Vinci's equestrian statue, 500 years in the making.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

This doorless 20th-century elevator doesn't stop or slow down.

Countless grotesque faces stare out from this eerie Prague art wall.

Steadily reminding Czechia of its past.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.