The Municipal Museum of Algeciras occupies a building at the northern end of the Parque de las Acacias and holds collections covering the city's history from prehistoric times through the 20th century. The archaeological sections are the most interesting, documenting the Phoenician, Roman, and Moorish presence at this strategic maritime crossroads.
The museum is small and the collections are not overwhelming, but for anyone staying in Algeciras for a day or two it provides useful context — particularly for understanding the city's strategic role across different historical periods. Free admission most days; closed Mondays.