Some of the relics of the buildings in Old Sacramento have been preserved in a place called Pioneer Park. In 1849, Pioneer Park was a butcher shop known as City Market. During the gold rush, the shop grew from a one story to four story building but had fallen to disrepair and general neglect. It’s a haunting look at the past and how much higher the city has been raised.
https://www.youtube.com/watch?v=Yj9bdDPPjNo