Every year, the International Bridge Racing Association selects a city with lots of bridges to host its annual Bridgetown Race. This year they have chosen Portland, Oregon USA.
During each round, players arrange for a transportation mode or special action of their choice. Then they move their racers through the streets, using bicycles, motorcycles, taxis, buses, automobiles, the street car and sometimes their own two feet, trying to cross each bridge and capture its flag. Be the first to capture a flag from every bridge and you win the race!