The ball-playing house of the Land Gentry Cadet Corps - Physics Room, Physical Society and University Library

The ball house of the Land Gentry Cadet Corps is located near the Paleontological Museum in St. Petersburg. The building was built at the end of the 18th century. It is a three-storey red brick building with an observation tower and a basement. Currently, the building houses the Physics Department, the Physical Society and the library of St. Petersburg State University.