Kastell Aying

Kastell Aying is a Roman military fort whose remains lie beneath agricultural fields at the eastern edge of Aying. The rectangular structure measures approximately 65 by 67 meters and contains foundation remains of walls and rectangular towers.

The fort was built in the late third to early fourth century and served as a strategic post along the Roman road connecting Salzburg to Augsburg. It represented an important point in the region's Roman defensive network.

The fort reveals Roman military construction techniques and strategic planning visible in the uncovered foundations and tower layouts. Visitors can understand how soldiers organized and built their defensive structures at this location.

The site can be viewed from the surrounding area as it lies beneath agricultural fields with no visible excavations. Access to the northwestern section is limited to protect local wildlife and vegetation.

Aerial photographs from 2015 first revealed the fort through vegetation patterns, suggesting either complete structural collapse or incomplete construction. This discovery through modern remote sensing allowed researchers to identify the hidden remains.