This 14th century brick church, the former parish church of the Old Town and where Hevelius was once church administrator, is also his final resting place. You will find his tomb at the rear behind the altar along with an epitaph funded by his grandson nearly 100 years after the great man's death. Following a fire in 2006, which resulted in the ceiling collapsing, work to restore the church has been taking place. Currently a fairly spartan scene, the highlight is a 76 metre baroque tower housing a 49-bell carillon, which has chimed on the hour - every hour - since the 50th anniversary of the outbreak of WWII in 1939. Getting inside the church can be tricky business; ring the bell at the port of cloister to have the church unlocked, or visit during services (which are held in Polish at 07:00 and 18:00). A display about the fire and the history of the church can be found under the church tower.