In which district of San Francisco is the structure that Walter S. Johnson famously contributed to preserve?
Walter S. Johnson:  As a philanthropist, Walter S. Johnson is most famous for his 1959 contribution to the preservation of the Palace of Fine Arts, an act that ensured the endurance of the iconic San Francisco landmark. Palace of Fine Arts: The Palace of Fine Arts in the Marina District of San Francisco, California, is a monumental structure originally constructed for the 1915 Panama-Pacific Exposition in order to exhibit works of art presented there.
Marina District