Which park had most attendances in 2008?
SELECT T2.park_name FROM home_game AS T1 JOIN park AS T2 ON T1.park_id  =  T2.park_id WHERE T1.year = 2008 ORDER BY T1.attendance DESC LIMIT 1;
most attendances in 2008 refers to MAX(attendance) WHERE year = 2008; park name requires joining tables on park_id;