Arka Monument is a monument in Klaipėda, Lithuania. It was built in 2003, commemorating the 85-year anniversary of the Act of Tilsit and the 80-year anniversary of the Klaipėda Revolt. The monument weighs 150 tonnes and reaches 8.5 metres (28 ft) in height. The smaller red column is made from red granite and symbolizes Lithuania Minor and its cultural heritage, while the gray part symbolizes Lithuania proper.