I have been all over the world and the very best pizza EVER in the history of things that pass themselves off as pizza is in Bergen, Norway. (will have to get the menu when I am home as I can't remember the name of it now). It is located across the plaza from the TGIFs there. (yeah... they have one there.)
Over 200 toppings, nearly everything you can think of. Duck, caviar, vension, etc.... But what makes it so good is each ingredient you pick is prepared separately. They don't have pre cooked items that they throw on the pie and then stick in the oven for the crust to harden and cheese melt. Instead they cook each one separately and independently while the crust slow bakes and then add them to the pizza in the order of prep. So when you get it the meatballs or ground beef or sirlion tips or chicken are hot but yet the raw onions or basil or such is still a bit cool and crisp.
I don't eat pizza much in the States (about once every 3-4 months) but when I am there, I eat at that place for lunch every day. It isn't cheap either. A medium size with 3 basic toppings for two people with a draft beer or glass of wine each is going to run you about $60.
