Spermatogenesis is the process of forming sperm cells by meiosis (in animals, by mitosis in plants) in specialized organs known as gonads (in males these are termed testes). After division the cells undergo differentiation to become sperm cells.
The Dracula of fiction lived in a place that was based on Bran Castle in Transylvania. Bram Stoker never visited Romania. He depicted the imaginary Dracula's castle based upon a description of Bran Castle that was available to him in turn-of-the-century Britain.
Stoker's description of Dracula's crumbling fictional castle also bears no resemblance to Bran Castle. The castle is now a museum dedicated to displaying art and furniture collected by Queen Maria. Tourists can see the interior individually or by a guided tour.