Eavesdropping on outer space- search ????other civilizations have been going on for 50 years, but the results are scanty
An ancient castle, a bridge, a river and deer bathed in cold moonlight
Ancient England is a rainy street at night , along which a carriage rushes against the background of lanterns and people walking along it
Aliens help in the construction of an ancient city
Ancient Roman infantry with shields, swords and spears