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Frey and Chambers designed the Palm Springs Aerial Tramway station house (the building at the base of the mountain) in 1963. The Tramway Gas Station, at the corner of Tramway Road and Highway 111, was constructed in 1965 with a distinctive hyperbolic paraboloid roof, which gives the building an instantly recognizable appearance. It was used as a gas station until the 1990s, when it was turned into an art gallery. In 2015, the building was placed on the National Register of Historic Places, and was converted to the Palm Springs Visitor Center.