The stone rotunda is a monument to the victims of the World War I in Marggrabowa (now Olecko) county, built in 1925-1927. On July 19, 1925, the first foundation stone was laid, and in 1927 on September 11, the construction of this second largest monument (20 m wide and 10 m high) was finally completed. The construction of the Marggrabowa monument was initiated by the starost (head of the commune), Bruno Wachsmann in 1921 and financed by veterans’ organizations. The monument was built on a hill, by the Great Olecko Lake, between the Geldap road and the city beach. The area was full of sports and entertainment areas with an Olympic-sized stadium, athletics and parkour running tracks, a city shooting range, tennis courts and volleyball and football pitches. The complex was supplemented by a youth zone, a summer pavilion and a large park.