Today I see a rainbow outside of my window while I was studying for my philosophy exam. It is a rare scene, so I seize the beautiful moment by snapping a photo. There is a legend that there is a pot of gold at at the end of the rainbow. Now, we all know rainbow is just a physical phenomena when the sunlight is deflected by the water drops in the air, so there is no end in a rainbow. However, in my photo the rainbow seems becoming out from that green apartment. I wonder will there be a pot of gold?