Photographer Jian Gao traveled down one of the longest rivers in the world to see how demand for sand is driving the region toward a crisis it might not be able to come back from.
It's not sun stroke, that really is a 20-foot-tall blue whale sculpture.
Jim Denevan wanders from beach to beach carving ephemeral illustrations that can only be appreciated from above.
Your upside-down bucket houses will be put to shame when you see Calvin Seibert's beachside masterpieces.
Bruce Shapiro applies CNC machining and magnets to the ancient practice of Japanese rock gardening.
Ice art, baby.
Yuko Tamura creates detailed sand paintings throughout mesmerizing live performances.
Producer Benjamin Wiessner tells us about the intensive, 6,500-frame animation, drawn one image at a time.
State-of-the-art military technology lets you create interactive topographical maps with your hands and piles of sand.