A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Explore the quarry where the marble was sourced for Michaelangelo's David.

The bomb-ravaged remains of of a colossal Neptune.

Pompeii's less famous neighbor is still revealing her secrets.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

Every dish at this restaurant claims to have a health benefit.

A KFC honors an eighth-century Chinese poet with holograms and verse.

If you've ever wanted to tear Hello Kitty apart with your teeth, this is the place.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The darkest building on Earth was built for the snow-white scenery of the 2018 Winter Olympics.

A 32-acre fun park dedicated to all things cheese.

Plenty of old carney magic still haunts this photogenic amusement park.

This abandoned fishing settlement may well be the greenest village in the world.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This king penguin is a knighted brigadier of the Norwegian Army.

The final resting place of soldiers' loyal canine companions.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

A beautiful but deteriorating monument of Soviet architecture.

Ruins of a former government building destroyed during the Georgian-Abkhaz war in the wake of the fall of the Soviet Union.

The second largest in the world, this massive underground void has its own subway.

The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

Georgia's answer to Easter Island immortalizes the nation's great poets, artists, and leaders in stone glory.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.