Property costs and rents escalate as the player rounds the board. The properties in Monopoly standard editions are named after streets in Atlantic City, New Jersey, and though a few are no longer around, many still exist, and are just as famous in the town as they are in the game. When a player owns all the properties in a color group (or 2/3 to 3/4 in the mega version), she or he is said to have a monopoly, which allows the player to charge double rent or build it up with Houses and Hotels. It is different from most currencies, including the American currency or British currency upon which it is based, in that it is smaller, one-sided, and does not have different imagery for each denomination. When a player buys or otherwise gains possession of a property, he or she receives the property's corresponding title deed, which lists all relevant information on the property. Currency stacked in the game's 'bank' Monopoly money ( symbol: ) is a type of play money used in the board game Monopoly. Properties may also be received from bankrupted players, provided the Bank didn't bankrupt them. Properties may be bought in one of 3 ways: landing on the property space and buying it at its printed price, being the highest bidder in an auction for property, or buying it from an opponent in a trade for any agreed-on price set by either party. Properties are necessary to achieve this goal. In the game of Monopoly, the winning objective is to bankrupt all opponents.