The glacier tucked within a New Zealand rainforest.

A perfect turquoise lake colored with glacier dust.

Tubing through a cave lit with glowworms is a magical underground experience.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

A glacier pocked with ice caves and surrounded by rainforests.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

A 16th-century horror show built in a lovely Italian garden.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

The mummified relic of St. Antoninus.

Art and armour fill every inch of this rich kid's Italian villa.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The oldest operating pharmacy in the world features 800-year-old recipes.

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

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A Nesting Doll of Churches.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.