If museums are on your list of things to see in Itoshima, then you might want to head to Ito History Museum. If you want to experience more of the culture Itoshima has to offer, head to Kyushu University.
If thrills are what you're after, head to Dongurimura Village, located 10 mi (16 km) from central Saga. If you'd also like to explore some of the parks in Saga, head to Yoshinogari Historical Park and Ogi Park.