Round Riga

In fact, this is an agricultural building from the 1760s-70s by an unknown architect. It is a round, squat tower made of local limestone, surrounded by a concentric wall of one floor high. The interior space once was covered with a roof.
The building was used for drying and storing grain until about the 1880s. However, historical science rule out that the foundation of the building still lies on some fortifications of Swedish times.