Well, it was a tough call between this photo and one of the Capitol dome from the inside, in Washington, D.C., for a circle, but this one has brighter colors, so it won.

This is the ceiling of the lobby of the all-inclusive hotel where we stayed in Playa del Carmen, Mexico - the Mayan Riviera. That was a fabulous trip - we took a day trip to Chichen Itza, a famous Mayan city ruin, and another trip to the ruined fortress of Tulum, on the coast. And it was our first all-inclusive experience, which was fantastic. Three meals a day, plus all drinks, plus trips, all for one price. Not a cheap price, but it was great. I highly recommend it.