Apart from defense, other purposes of the Great Wall have included border controls, allowing the imposition of duties on goods transported along the Silk Road, regulation or encouragement of trade and the control of immigration and emigration.
Taking its name from the mispronunciation of Roof, a joke that only Asians themselves can make, Loof is decorated in wood and shingle tiles, and serves a selection of original cocktails and bar food that's just the job after a hard day at the office.