40. A carnival in the clouds, with hot air balloons and floating rides.

39. Paint swirls: A close-up of oil paints mixing on a palette.

38. A desert with giant, ancient clock faces half-buried in the sand.

37. Old book pages: The yellowed, textured pages of a vintage book with visible ink and wear.

36. Water droplets: A close-up of water droplets on a spiderweb.