Can't say what the set is that we're building for National Treasure 2, but I will say that it involves a Set Sculptor's bread and butter... ROCKS.
After 9 consecutive days blocking up Styrofoam, defining masses, shaping and carving rocks for 11 hours a day, I got a few days off for Easter. I will however be working on Easter Sunday instead of eating ham.
The rock sculpting has mainly been chopping foam with customized gardening tools.