LEGO CITY: City Square (60097) for sale online | eBay
Amazon.com: Lego City Main Square 60271 Set with 1517 Pieces Featuring a Town Hall, Diner, Limo, Park, Tram and Helicopter from City Adventures : Toys & Games
LEGO Part Green Plate, Square 3 x 3 - Brick Land
Assembly Square: part one | New Elementary: LEGO® parts, sets and techniques