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Title
Ferns and Bricks in El Morro Citadel #173085890
Description
Ferns growing in crevices between bricks of the El Morro Citadel in Old San Juan. El Morro Citadel was constructed and expanded between the 16th and 18th centuries and is now part of the US National Park System and has been designated a UNESCO World Heritage Site and is listed in the US National Register of Historic Places