moscow, russia - june 20.2017: memorial of the the great german revolutionary socialist karl marx on the teatralnaya square.

architecture author blue bust city cityscape class communism conflict downtown economist europe famous german great historian history ideology international karl landmark leader liberty marx marxism memorial memory monument moscow opposition outdoor park philosopher place political popular proletariat public revolution revolutionary russia sculpture showplace sky slogan socialism socialist soviet square statue stone street struggle summer sunlight sunshine teatralnaya theories theorist union unite ussr workers world