Last year about this time David Griffin, National Geographic’s director of photography, and Elizabeth Krist, a senior photo editor, walked into my office and asked if I had any ideas on how we could photograph Stonehenge in a way that would be new and different. It was a natural question. David was already thinking about high-dynamic-range photography, and I’m the digital-tech guy at the magazine. I had an idea, but it came with a catch—I wanted to be the photographer, anything to get out of the office and into the field.