Seto was part of the location of the Expo 2005 held in both Seto and Nagakute. The attractions are mostly gone, but the grounds are still there and have been converted into a park.
shrines
Kamagami Shrine This shrine dedicated to the founder of Seto ceramics, Tamakichi Kato, is found on a steep hill behind Owari-Seto station. It takes about a 5-10 minute walk to get there, and yields a nice view of the city. There is also a monument dedicated to those from Seto who died during the Second World War.