The designer pizza was practically invented in Los Angeles, with the likes of Wolfgang Puck serving his signature smoked salmon pie topped with caviar at the annual Oscar Governors Ball. Today, expensive pizzas come either topped with luxurious delicacies or prepared by the strictist of Neopolitan standards. The results are often more than worth the price, considering the amount of work that goes into making the house-made starter dough and keeping a steady wood-fired oven. Here's a guide to some of the most expensive pizzas in Los Angeles, in no particular order, glorified by caviar, truffles, prosciutto, and other rare mushrooms. — Matthew Kang