Karl the Fog took sand-sculpture form at Ocean Beach, and a team of third through fifth graders won big for it.

Thousands of students, artists and design professionals participated in the San Francisco sandcastle competition, a fundraiser for art and architecture education in Bay Area schools.

Scientists reconstructed two earthquake-triggered tsunamis at Italy’s Lake Iseo and say centuries of farming helped set the stage for them.

Mount Rushmore is an iconic American landmark in South Dakota featuring the sculpted, 60-foot heads of former Presidents George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln.