The Roman aqueduct at Segovia, built around the first century AD without mortar, still carried water into the 1970s, its 167 granite arches held together by nothing but the precise weight distribution of stones cut to fit each other within fractions of a millimeter. Saving Tips June 10, 2026 The Aqueduct of Segovia rises out of the Plaza del Azoguejo in central Spain with granite arches stacked in two…
