San Francisco City Hall, San Francisco

The city hall building is the site of some of San Francisco's finest moments. In 1954 Marilyn Monroe and Joe DiMaggio were married here. In the early 21st century, over 100 same-sex couples were married by Mayor Gavin Newsom in the foyer. The Renaissance architecture rivals some of the country's most historical structures. Two Parisian architects designed and constructed the building from 1913-1915, and the dome is based on the one crowning St. Peter's Basilica in Rome. A small store, open during normal business hours, sells traditional San Francisco souvenirs including T-shirts, posters and postcards.