Ephesus is one of Turkey’s major attractions. This city is one of the world’s largest archaeological sites. Once home to an ancient Greek then Roman city, Ephesus was thought to have over 250,000 citizens. The site is considered one of the largest and best preserved ancient cities, although only a small percent of it has been unearthed by archaeologists. The ancient city’s main attraction is the Library, thought to be one of the world’s first known libraries.