Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A crumbling hospital from the 1850s on Roosevelt Island.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Over 100 artworks are painted on the walls of this town, making it an open-air museum of contemporary art.

A centuries-old forgotten underworld lies beneath Malta.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

The former atelier of Mario Cassisa is a treasure trove of paintings, sculptures, and artist books.

The only Malaysian food truck in Italy slings tangy chicken satay that even Italians love.

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

This building has a giant piercing through one of its corners.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

This poignant art installation raises awareness of violence against women.

A collection of wonderfully preserved 19th-century creatures, as well as hunting trophies seized during a police raid.

A Milanese café entirely designed by the American director Wes Anderson.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

A sunken idol welcomes parishioners to Davy Jones' Locker.

This brightly-colored chapel is a contemporary jewel standing in the middle of a La Morra vineyard.

The now-abandoned Fascist summer colony served a dark purpose during World War II.