Students from the Frederic Burk School walk through the vaulted brick casemates of Fort Point during a school field trip to San Francisco’s historic sites. The repeating arches and layered passageways emphasize the scale of the former military structure, originally built in the mid-19th century to guard the entrance to San Francisco Bay. Captured in motion, the photograph reflects experiential, place-based learning common to progressive education programs of the period, situating students directly within the city’s architectural and historical landscape.