The House of Dragutin and Aleksandar Krsmanović in Donja Mutnica is the birthplace of the national hero Branko Krsmannović, a Spanish Civil War fighter and national hero who died as an organizer of the Serbian people's uprising on August 8, 1941, in Kasmaj. The house is essentially a rectangular building with four rooms, situated on flat land. The central part is the ‘house’, with a large guest room on one side and two smaller rooms on the other side. It was built using a bondruk construction method, with a gabled roof covered with tiles.

A marble memorial plaque with an inscription dedicated to Branko Krsmanović is placed on the exterior facade of the building. The house once served as a museum, and part of it was also used as a village library and reading room. Today, it is no longer in use.