The "palace" is almost certainly a corner of the circa 1919 De Young museum (before the concrete filigree decayed and then was removed in the late 1940s).

Here we see the fake-convertible look mimicked 40 years later by the obnoxious vinyl tops that proliferated on so many American cars. Like an athletic team jacket worn by an obese fifty-year-old, they fooled no one.

To borrow from the old Fisk ads, is it "Time to re-tire?"