In Edinburgh along the street known as the Royal Mile are many “closes” or narrow passageways between buildings and sometimes underneath them. I have not seen them in the New Town or much anywhere else for that matter, but there are dozens along this street winding off down the hill or into private courtyards. My own apartment is entered by passing through a close but it is not a particularly scenic one. Here are pictures of some of the others.
And for good measure, here are some night-time photos.