Asmara (Tigrinya: ኣስመራ?) known locally as Asmera (meaning "They [feminine plural] made them unite" in Tigrinya), is the capital city and largest settlement in Eritrea. Home to a population of just over 800,000 inhabitants, it sits at an elevation of 2,325 metres (7,628 ft), the sixth highest capital in the world by altitude. The city is located at the tip of an escarpment that is both the northwestern edge of the Eritrean highlands and the Great Rift Valley in neighbouring Ethiopia. In 2017, the city was declared as a UNESCO World Heritage Site.