Photo submitted by Angkai Li, an undergraduate student majoring in statistics in the Eberly College of Science. The submitted caption reads: "I captured this photo in January, shortly after a snow. While walking along the sidewalk of East College Avenue, I passed by the Old Main Lawn. I noticed two sets of footprints trailing across the snow-blanketed grass — irregular yet artistically pleasing paths winding toward the center of Old Main. At that moment, a gust of wind unfurled the national and state flags in full display, where nature's randomness harmonized with human traces. I quickly took the scene with my iPhone from the edge of the lawn."