Located at Jalan Boyong in Kaliurang, a small distance from the city of Yogyakarta, the Ullen Sentalu Museum lies in the Kaswargan Park, covering an area of 11,990 square meters. Officially opened on 1 March 1997 it took five years to prepare since 1994.    

The Museum, which also houses intangible heritage that covers expressions, knowledge, representations and skills, is the initiative of Haryono and comes under the auspices of the Ulating Blencong Institute.

Blending perfectly with its natural surroundings, its walls and floors are made of stones that were spewed by the Merapi volcano, now found abundantly in the surrounding rivers.