After witnessing the rise and fall of three empires, this ancient city was finally destroyed by a series of earthquakes.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

100-windowed castle turned art gallery, built by one dedicated mason.

A unique underground structure dating back to the 1st century BC.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

From the dishes to the art, this Michelin-starred restaurant orbits around one beloved French melon.

One man's desire to transcend art led to the construction of this outsider chapel.

Walk through living pictures and music in the Cathedral of Images.

This mysterious sculpture was thought to symbolize a world ravaged by misery.

An eerie collection of the surviving structures from a past celebration of the future.

The world's largest wooden structure.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

Its look is severe, but its location, isolated on a hill in the middle of the countryside, is particularly scenic.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

This lesser-known leaning tower is all that remains of the medieval castle of Vernazzano.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The last remaining Hakka cemetery in Singapore.