Downtown Oakland is an interesting combination of old buildings and newer structures.  It has some appealing parts and some that are a little less attractive.  However, one thing did catch my eye once I had checked in to my hotel.  A neighboring building had decorated a tree in its grounds with some great lights.  These lights had a rippling effect which looked really great.  Video is the only way to give an impression of this so here is a clip to explain what I mean.