Khersones
Chersonesus (Херсонес) is an ancient city on the territory of Sevastopol, in the Crimea, Ukraine.
The city was founded by the Ancient Greeks.
Chersonesus is the city where Vladimir(the russian "knyaz'"(king) who convereted Russia into Christianinty) was suposedly baptized.
The church in which he was baptized is still there.
Nowdays there are few museums open on the territory of Chersonesus, the excavations of the ancient city are in progress.
See: http://en.wikipedia.org/wiki/Chersonese