I’m amazed at how much is below the surface in some cities. The next time you see a high-rise, keep in mind that a lot of it is underground; not just parking but restaurants, shops and walkways. Walkways that lead to other buildings and other shops and restaurants and other walkways and, well you get the idea. At first I was baffled by these stacks, but after a little consideration realized that these probably lead to who knows what under my feet. Probably someone sipping on a latte at Starbucks wondering what the weather is like outside.