This steamship has been beautifully rusting off the coast of an Iranian island since the 1960s.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Marked by the hand of the explorer Henry Morton Stanley.

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.

Iranian tombstones shaped like male and female sexual organs.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

This circular Iranian jail was once a political prison run by the country's secret police.

Long before air conditioning, Persian architects found an ingenious way to cool off.

This ancient fortress in Iran was once the oldest and largest treasury in the world.

Burial site of a Jewish prophet revered in Iran.

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

The fire inside this temple has burned for more than 1,500 years.

Salt cured mummies continue to turn up in this Iranian mine.

Hundreds of stones dangle from barren trees in the middle of the desert.

The hottest, driest, and most scenic desert on Earth.

A dreamy mausoleum honors Persia's most famous poet.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

In this tiny Iranian town playing on the roof isn't just encouraged, it's the only place to go.

One of the largest and oldest caravansaries in Persia.

These little castles each held thousands of pigeons.

This vast, water-filled underground labyrinth can only be toured by boat.

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

One of the world's largest salt caves is filled with fragile salt sculptures, salt rivers, and huge salt megadomes.

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.