[Roccosmommy]

I found this article that lists the rare pieces, as well as giving the number of prizes available:


Here is the list of rare McDonald's Monopoly game pieces for 2010: Mediterranean Avenue (#750), Baltic Avenue (#751) (5,000 Prizes): $50 cash. Mediterranean Avenue is rare.
Oriental Avenue (#752), Vermont Avenue (#753), Connecticut Avenue (#754) (1,500 Prizes): $100 cash. Vermont Avenue is rare.
St. Charles Place (#755), States Avenue (#756), Virginia Avenue (#757) (250 Prizes): $200 SpaWish gift card. Virginia Avenue is rare.
St. James Place (#758), Tennessee Avenue (#759), New York Avenue (#760) (250 Prizes): $1,000 cash. Tennessee Avenue is rare.
Kentucky Avenue (#761), Indiana Avenue (#762), Illinois Avenue (#763) (122 Prizes): Beaches Resorts' The Luxury Included 4-day family vacation for 2 adults and 2 kids. Kentucky Avenue is rare.
Reading Railroad (#772), Pennsylvania Railroad (#773), B&O Railroad (#774), Short Line (#775) (8 Prizes): An EA Sports trip. Short Line is rare.
Atlantic Avenue (#764), Ventnor Avenue (#765), Marvin Gardens (#766) (5 Prizes): $25,000 cash. Ventnor Avenue is rare.
Pacific Avenue (#767), N. Carolina Avenue (#768), Pennsylvania Avenue (#769) (4 Prizes): $50,000 cash. Pennsylvania Avenue is rare.
Park Place (#770), Boardwalk (#771) (1 Prize): $1,000,000 payable as an annuity. Boardwalk is rare.