This remote mountain shrine is one of the most sacred Zoroastrian temples remaining in the world.

The largest covered bazaar in the world.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

Marked by the hand of the explorer Henry Morton Stanley.

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

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

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

The tower in this 1,000-year-old mud-brick village seems to vibrate for no apparent reason.

A dreamy mausoleum honors Persia's most famous poet.

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

17th century mosque for Shah Abbas' harem.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

Putrefaction plateaus in Iran, where the dead were sent for decontamination before going to their final resting place.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

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

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

A remarkable feat of Victorian engineering across the Firth of Forth.

The ruins of Scottish sea salt production.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

The ornate structure is part of a building boasting more marble than the Vatican.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Possibly the oldest living thing in Europe, more likely a pagan survivor.