I try to fill this blog full of details, architects, and backstories…but sometimes you’ve just gotta share a mystery. Perched up on a high hill are three mid-century houses that sit right next to each other. The houses give off a strong Prairie Style vibe (a-la Frank Lloyd Wright) but in terms of actual details, this trio of houses remain a mystery.

Structure: Mystery Hill House #1
Location: Louisville, Tennessee
Architect: Unknown
Date: 1945
Tidbit: A fellow architectural enthusiast toured this house when it was for sale in 2012, and he took a bunch of photos. View them here.

Structure: Mystery Hill House #2
Location: Louisville, Tennessee
Architect: Unknown
Date: 1953

Structure: Mystery Hill House #3
Location: Louisville, Tennessee
Architect: Unknown
Date: 1960