Much like the number of pieces of Hint Art found throughout given Kingdoms, you will also find what are known as Warp Paintings in a few kingdoms as well. Unlike Hint Art, Warp Paintings will actually warp Mario to another kingdom, an isolated area of each that will ultimately lead to another Power Moon. Sometimes, you may even travel to a kingdom that you have yet to discover.
You can find Warp Paintings in Cascade Kingdom (leads to Bowser's Kingdom), Sand Kingdom (leads to Metro Kingdom), Lake Kingdom (leads to Sand Kingdom or Luncheon Kingdom), Wooded Kingdom (leads to Luncheon Kingdom or Sand Kingdom), Metro Kingdom (leads to Wooded Kingdom or Lake Kingdom), Snow Kingdom (leads to Cascade Kingdom, Wooded Kingdom or Lake Kingdom), Seaside Kingdom (leads to Cascade Kingdom, Lake Kingdom or Wooded Kingdom), Luncheon Kingdom (leads to Mushroom Kingdom), Bowser's Kingdom (leads to Seaside Kingdom or Snow Kingdom), and Mushroom Kingdom (leads to Snow Kingdom or Seaside Kingdom).