Located near the Embarcadero at 101 Spear Street near Mission, the Rincon Annex Post Office was the last great WPA project. The original theme was to be a cycle of twenty-four murals showing San Francisco's history. Anton Refreigier, a Russian immigrant from Woodstock, New York, won the competition. He came to San Francisco and quickly familiarized himself with the history of the city. The Second World War broke out during the course of the project, and production was stopped on the mural, only to be completed after the war. The initial concept was to end the cycle with 1939 World's Fair on Treasure Island, but given recent events, Refreiger decided to extend the series to twenty-nine panels. He ended the project with the completion of the Golden Gate Bridge, the war, and finally with the creation of the United Nations in San Francisco.