Update: The seminary buildings were demolished in 2023.
The former Holy Family Seminary in Overland is now Wild Acres Park, but the buildings are still well-preserved and the grounds well-maintained.
They have sort of a 1940s proto-Modernist interpretation of the Spanish Revival, which I sort of like. Like St. Stanislaus Seminary in the Florissant area, the decline in enrollment in seminaries resulted in its closure.