A standalone expansion for När då då (The Best of Chronology) with cards containing trivia about famous buildings. Gameplay is similar to the original game. On the players turn, an opponent draws a card from the deck and reads the text on the card. If the player successfully points out where the card should go in their current timeline, the card is added above the player Time lock and the player may then either decide to end the turn and move the cards above the time lock to the safety below it or try to get another card. If the player fails to place a card correctly, all cards gained in the current turn are lost, the turn ends and play passes to the next player. The winner is the first player to win five cards. When used with the original game, the cards from this game is added as another category. A new six-sided die and cardboard markers 1-6 are included to choose the category. —user summary