Have you ever enjoyed a good sandwich with many layers inside? I’m sure that you have. Jerusalem too has many layers. We naturally tend to walk along the upper layer of Jerusalem and experience it. There are many layers, though, that seek to be explored right underneath our feet. 
The 2000 year old drainage channel in the City of David is one of these places. Situated in the site where the story of Jerusalem began 4000 years ago, this drainage channel is relatively new to some of its older neighboring finds. One of the breathtaking findings inside here is a Western Wall stone that fell into it while the Western Wall was being constructed 2000 years ago. This means that we actually walk under a massive multi ton stone, hanging above our heads, that got stuck in the top of this drainage channel.
Come check it out, just saying..