You might want to get your camera out and head to Abbey of Santa Maria del Pero— just one of the landmarks located 1.1 mi (1.8 km) from central Monastier di Treviso.
Church of Monastier is 0.7 mi (1.2 km) from central Monastier di Treviso, why not stop by during your stay. Monastier di Treviso has other landmarks you might want to visit such as Rialto Bridge.