9th century Abbasid mosque, damaged in modern warfare.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

A shrine on the shores of the Tigris.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

This 12,000 year old Iranian cave village has been continuously inhabited for over 3,000 years.

The palace of the King of Kings, burned by Alexander the Great.

17th century mosque for Shah Abbas' harem.

These little castles each held thousands of pigeons.

A historic arboretum and non-conformist, non-denominational park cemetery.

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A Victorian school for poverty stricken waifs has been preserved as a museum to their donated education.

A museum wholly devoted to juvenescence.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Traveling collection of amazing automata.

The largest known medieval map of the world.

Beasts and branches swirl in sandstone carvings, interrupted by one strange creature.

The anatomical-pathological collection of a man who changed surgery.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.