The entire old town of Segovia is a UNESCO World Heritage Site.

Segovia's old town is designated as a UNESCO World Heritage Site, preserving its ancient and medieval architecture remarkably well. Among them, the Segovia Aqueduct was built during the Roman era to supply water to the highlands. It was constructed to bring clear water from the mountains outside the city and consists of 128 two-tiered arches. The highest point is said to be about 30 meters. This aqueduct, built during the Roman era, is one of the best-preserved aqueducts in Europe, stretching almost 720 meters. I didn't expect much, but seeing it in person, I was overwhelmed by its grand scale and felt as if I had stepped into medieval Europe.