Cities is a simple, old rummy-style card game with a 54 card deck consisting of 3 cards sets of 18 cities. The object of the game is to collect all three cards for a city--CHI/CA/GO, for example--which is scored based on the city's population. (The game is from 1932, so Houston is half the size of Milwaukee!)Each card contains picture of a famous building and a brief factoid about the city--did you know that Pittsburgh has (had?) more viaducts than any city in the world? - BoardGameGeek