Where can I find a great website or book about Italian and Greek History?

I've been starting to get really interested in Italian history. I would like to learn more about their ancient history and renaissance period. Things to do with art, like the Vitruvian Man and Statue of David (Michelangelo and Leonardo Da Vinci.) Also, the war history, like the Crusaders, and other beliefs like that. One last thing that I would like to study deeper, is the Medici Family. This is all for personal interest. OH! And if anyone knows random and mysterious symbols like the Volknut, and anything relating to Greek and Norse Mythology, would be excellent. I really love Greek Mythology, so really anything to do with Greece would be super! Thanks!