Man made harbour

Man made is the Wide Wednesday theme. Apart for the water in the harbour, everything here is man made - boats, houses, piers etc. Then I started to wonder about the wood used for the boats and the stone used to build the houses. What does man made really mean? Thanks to BobsBlips for hosting.
If anyone wonders why Reaper is not at her usual mooring, she is currently on her way to Whitby.