San Francisco: 24 then and now snapshots in time

24 then and now images from the core of one of America's greatest cities: San Francisco.

1.

Above: The Ferry Building in 1906. Courtesy of the Library of Congresss. Below: The Ferry Building in 2015.

2.

Above: The Ferry Building on October 2, 1960. Courtesy of the Library of Congress. Below: Today, the ground floor of the Ferry Building is devoted to a 65,000-square-foot public food market showcasing the very best of the Bay Area’s world-renowned food community.

3.

Above: Union Square and the St. Francis Hotel after the Great 2906 San Francisco earthquake. Courtesy of the Library of Congress. Below: Union Square, the Westin St. Francis and its 32-story, 1972 addition.

4.

Above: The San Francisco-Oakland Bay Bridge under construction in 1934. Courtesy of the Library of Congress. Below: Today, bridge carries 240,000 vehicles a day on its two decks linking San Francisco with Oakland.

5.

Above: Looking north in Portsmouth Square in 1851 during the Gold Rush. Courtesy of Wikipedia. Below: Looking south in Portsmouth Square. Today, considered a part of Chinatown, it has been called the “Heart of Chinatown”.

6.

Above: Pine Street below Kearney Street in 1906. Courtesy of the Library of Congress. Below: A 21st century view of Pine Street below Kearney Street.