Turkey

Commissioned by Sultan Suleiman the Magnificent and constructed by the great Ottoman architect Sinan, this beautiful mosque patterned after the Hagia Sophia was finished in 1557.

The "New Mosque" is not so new - it was built in the 1600s. Designed by Da'ud Aga, a pupil of Sinan, Yeni Camii has become a defining feature of Istanbul's skyline.

Built by Justinian in 532, this cistern provided water to the imperial palace of Constantinople.

One of the main Roman roads in ancient Ephesus, named for its marble pavement.

This 11th-century church (later a mosque and now a museum) contains one of the finest preserved galleries of Byzantine mosaics anywhere.

In ancient times it was one of the Seven Wonders of the Ancient World, but today the Temple of Artemis is represented by a single column standing in a swamp.

The facade of the Library of Celsus is one of the most spectacular sights in Ephesus. Built by a Roman in memory of his father, it faces east so the reading rooms receive the morning light.

Discovered in a vision by a bedridden German nun in 1812, this stone building is believed by many Catholics and Muslims to be where the Virgin Mary lived her last years. It includes a healing fountain.

Said to have been founded by Apollo, Hierapolis (modern-day Pamukkale) was the site of sacred hot springs associated with Pluto, god of the underworld.

The Basilica of St. John was built by Emperor Justinian in the 6th century over the traditional tomb of John the Evangelist. The site became a major pilgrimage destination in the Early Middle Ages.