Besides the museum, the Sunnyside Historical Society has three historical buildings in Round Mountain:
The Berg House was built by William H. Berg for his family of seven to live in during the harsh winter weather and so the children could attend school. In the summers they lived on the ranch that is still in the family today.
The ice house was a store owned and operated by Karl Berg, Will’s brother. Karl butchered many of the local’s game after a hunt. A room inside the store was built with thick walls full of straw where he hung the meat, keeping it cool with ice.
The bottle cellar was built by Will for cold storage. The walls are two bottles wide, unique to this structure.