Cobblestones.

Where did Prague's cobblestones come from?

This morning I emailed my Art and Architecture teacher from last fall to find the answer.

Her response:

Dear Kelly,

it is basically the tradition way how to make roads, which somehow survived in Prague due to the effort to keep the historic center. If you think of it, to put small pieces of the stones on the muddy road is a logical and quite cheap way how to create more or less comfortable passage. This was practiced probably since the middle age. It is part of traditional craft and still practised because it has certain advenages over the "normal" pavements (it can be replaced easily, you don't need expensive machines to make it, it looks nice if you create some designs).
All the best, Pavlina Morganova