Nature (and graffiti) reclaim this old waterworks that has been surrounded by a bike path and network of walking trails.

The statues commemorate the legendary mass killing of escaped circus monkeys.

The world's first time capsule lies behind a welded steel door in Atlanta.

This pair of centuries-old magnolia trees was once struck by a Babe Ruth home run.

"The prettiest love letters in the world" ... or so said Lord Byron.

Remnants of cone-shaped fascist bomb shelters in Milan.

This small Milan street is filled with colorful homes and a rich history.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

This camera store in Milan holds one of Europe’s largest collections of luxury-antique cameras.

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

In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

The enigmatic sculpture hides above an escalator in a Milan metro station.

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

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

Invented in the mid-19th century, this machine could send copied images via telegraph lines.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

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

The only museum with its curator—and her pets—buried inside.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

Venice's island of the dead.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

A medieval weapon rumored to have been used by the brilliant poet himself.