Yahoo! Dome, the home of Japanese pro-basebll team Softbank Sea Hawks, also a dream of Taiwan's baseball players and fans! You can spend JPY800 for a backstage tour to see the baseball field, bullpen, and rest area. The time we during our visit, the dome was in maintenance, so we did not see the baseball field with green artificial grass.
Beside the dome, there is the most expensive hotel in Fukuoka City - JAL Sea Hawk Hotel.