The first kidney-shaped swimming pool was designed by landscape architect Thomas Church in 1948 for the Donnell family's modern home in Sonoma, California. Up until that time, most swimming pools were rectilinear in shape, for a straightforward lap-swimming experience. Church's biomorphic design was photographed for many magazines, making the kidney shape a popular choice for residential swimming pools.
The focal point of the Donnell landscape design is a sculpture by Adaline Kent, which serves as an island in the center of the kidney-shaped pool.
