A typical Roman Basilica. It is 165 meters long, and located on the northern part of the state agora. The Ionic columns in the basilica are adorned with bulls' head figures dating to the 1st century A.D.

The basilica was used for stock exchange and commercial business. It has three gates opening onto a stoa leading to the Bath of Varius. The statues of Augustus and his wife Livia were found at the east end, and now they are displayed in Ephesus Museum.

The ruins to the east of the Basilica belong to the bath of Varius, dating to the Roman period. The construction dates to the 2nd century A.D and the mosaics in the 40 meters long corridor dates to the 5th century.