Celsus Library is known as third largest library of Ancient World after Alexandria and Pergammon libraries.
It has a typical architectural style prevalent in the period of Emperor Hadrian, dates back to 2. Centry AD. Celcus Library of Ephesus City was constructed to honour proconsul (governor) of the Asian province Tiberius Julius Celsus Polemaeanus, by his son Tiberius Julius Acquila.
Celsus library locates at center of the corner of Curetes street and the Marble road, just to the left of the Commercial Agora. It is on a nine-stepped podium, the facade has richly decorations with relief carvings and now visitors can see two stories – each with three pairs of columns capped with Corinthian capitals. First storey’s pillars look like taller than second storey’s pillars for giving perspective to the building. A burial chamber is under the structure in which the stunning tomb of governor locates. There are four statues locate in niches on the three entrance doorways of Celsus Library. These figures represented four virtues associated with the late governor: wisdom (sophia), intelligence (ennoia), knowledge (episteme) and virtue (arete).
During the Gothic invasion in 3. Centry AD, Celsus Library was destroyed by fire. Despite the fire facade of the building survived and the library was repaired in the 4th century then a fountain was added in front. After destruction of 7 century AD. Earthquake, the library was abundant like whole city.
In 1970’s, Celsus Library was re-erected by the aid of the Austrian Archaeological Institute and became the most well restorated building of Ephesus City.