claim a route on the board and place the corresponding number of train pieces from their store on the claimed route, thereby earning points. The routes are of varying lengths (requiring varying numbers of matching coloured cards), and only a single player can claim each discrete route marked on the board. Some cities are connected by two parallel routes that can each be claimed by a different player (unless the game is played by three or fewer players, in which case only one of the routes can be claimed). The same player may not claim both parallel routes between two adjacent cities. Longer routes are worth progressively more points than shorter routes, e.g., a route of length four is worth more than two routes of length two. On their turn, a player can claim any route on the board that has not already been claimed, regardless of whether the route helps to complete their destination tickets. The routes score points by themselves, as mentioned above, but routes not connected to a player's destination do not help them reach the destination or complete their destination ticket. The game ends when one player has only two or fewer of their supply of coloured train pieces. When this occurs, every player then plays one additional turn, after which they each reveal their previously hidden destination tickets. Additional points are awarded for having successfully connected the destinations on the cards, whereas points are subtracted for any incomplete tickets. A ten-point bonus is awarded to the player who has the longest continuously connected set of routes. Since the game's release in 2004, Days of Wonder has released additional stand-alone board games, expansion maps - which require a base game to play, a card game, and multiple electronic game versions. Board games The original game features "railway routes connecting cities throughout North America", and was released in 2004. In 2008, Days of Wonder released USA 1910, a card expansion that contains additional destination tickets and a full-size deck for both routes and railway cards to replace the much smaller ones included in the original game. Ticket to Ride: 10th Anniversary; In 2014, the company released Ticket to Ride: 10th Anniversary, which has a larger map of the original game (USA) and metal boxes for the trains. There are no rule changes to the game, but the map and cars are larger and have been redesigned. The