The arches of
the arcade have decorative
keystones that feature elements of
the Württemberg coat of
arms. These were created by
Joseph Zeitler and include a
hunting horn and a lion with his
tongue sticking out.
From 25 September 2013 to the
beginning of May 2016, the art
building served as the temporary
accommodation of the
Baden-Württemberg Parliament,
while their building, nearby in
the Schlossgarten, was being
refurbished.