4 September 2014 announces the arrival of a new Knock-type building to Klondike - the Rainbow. * Get a Rainbow at the Market, place it on the ground and wait till your friends leave some sparkles in it so that you could upgrade the building. Later, you will get to transform your Rainbow into a heap of gifts. The more you upgrade the Rainbow, the better gifts you will get. Initially, your Rainbow will look like a simple frame with a star, but as you upgrade it, it will keep improving and getting more and more beautiful. Here are some details about the Rainbow: