The Alqueva Dam, located in Portugal, is a massive arch dam that creates the largest artificial lake in Western Europe. Completed in 2002, the dam serves multiple purposes, including water supply, irrigation, power generation, and tourism. The reservoir formed by the dam has a capacity of 4.15 billion cubic meters and covers an area of 250 square kilometers. With its impressive size and functionality, the Alqueva Dam is a significant landmark in the region, offering a range of benefits to the local communities and visitors alike.