Architecture
American Architecture Series
On June 4, 1979, the USPS issued the first block of four stamps in the American Architecture Series, which honors the evolution of American architecture over the last two centuries.
Opening of the Golden Gate Bridge
On May 28, 1937, the Golden Gate Bridge officially opened to traffic.
Lighthouse Series
On April 26, 1990, the USPS issued the first booklet in its Lighthouse stamp series.
Opening of the Chrysler Building
On May 27, 1930, the Chrysler Building, the tallest man-made structure at the time, opened to the public.