Pantheon Basel, Automobile museum in Muttenz, Switzerland

Pantheon Basel is an automobile museum in Muttenz housed in the former Züblin repair and machine hall, built in 1965 by architects Janz and Spinnler. The circular hall has a 50-metre column-free diameter and a prestressed roof shell only 5 cm thick. A spiral ramp begins outside the building, continues inside, and ends just below the roof; both roof and walls are translucent, so the parked vehicles are faintly visible from outside at night.

The Basel entrepreneur Stephan Musfeld, who bought his first vintage car with his apprentice wage, found Switzerland lacked a centre for maintaining classic vehicles. He came across the disused Züblin repair and machine hall in Muttenz, built in 1965 by architects Janz and Spinnler with a 50-metre column-free span. After about two and a half years of conversion by Toffol-Architekten, the Pantheon Basel opened on 16 August 2008.

The Pantheon is a meeting place for vintage-car owners and enthusiasts, not only a museum. Its year-round restaurant, the Classic Garage with saddlery, paint workshop and mechanical workshop, and an events floor for up to 1,200 people keep it in use. In the northern box building, owners rent lockers of 30 to 75 m² for private work.

The museum is open daily. The spiral ramp starts as an outdoor driveway on the building's exterior, continues inside and ends just below the roof; both roof and walls are translucent, so at night the lit hall lets parked vehicles be seen in outline from outside. Guided tours of the exhibition are offered, and the attached museum shop sells car models and literature.

The collection includes Ferdy Kübler's racing bike, on which he became the first Swiss rider to win the Tour de France in 1950, and Albert Aichele's 10-kilogram Ordinary Racer, used to set a one-hour world record of 37.08 km in Munich in 1887. The oldest car, an 1886 Benz Patent-Motorwagen, is one of the few replicas made.