Cave of Hercules

The Cave of Hercules is a subterranean vaulted space dating back to Roman times located in the alley of San Ginés in the city of Toledo [1]. The cave is under a building located where the Church of San Ginés, Toledo stood until 1841 [1]. The structure was likely constructed in the time of the Roman Empire, probably towards the second half of the 1st century [1]. It appears to have been a water reservoir supplied via the aqueduct bridge which brought water across the River Tagus [1]. The structure was deeply altered with the construction of an arcade of three arches of ashlars in the southwest side [1].