A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

The remains of this misplaced church were moved here stone by stone.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

An old, deep well, connected with a miraculous, divine rescue and the patron saint of Madrid.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

An automaton perched above an classic clock and watch store

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

A dreamy mausoleum honors Persia's most famous poet.

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

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

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

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

Marked by the hand of the explorer Henry Morton Stanley.

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

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

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

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

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

17th century mosque for Shah Abbas' harem.