For a different perspective on the Western Wall, join a tour of the Western Wall Tunnels, a 488m passage that follows the northern extension of the wall. Dug out by archaeologists, the tunnel burrows down to the original street level (nicknamed Market St by tour guides because it was believed to have been a shopping area). The foundation stones here are enormous – one is a 570-ton monster the size of a small bus.
You can only visit the tunnels on guided tours (Hebrew and English all year, French in August only), which take about 75 minutes and must be booked in advance. These tours are very popular and fill up fast – try to book at least a week ahead of time.