Dorylaeum is the Byzantine and Roman predecessor of modern Eskişehir, and the site of two major medieval battles. Most of the ancient remains have been built over, but a low excavated tell on the northern edge of the city — the Şarhüyük site — preserves traces of the Hellenistic and Roman town. There is little to see on the ground: a few exposed walls, some grass-grown earthworks.
Casual visitors usually skip the site itself and read about Dorylaeum in the context of the local Crusader history. The Eskişehir Archaeology Museum has objects recovered from the digs.