The goal? To build a 20 foot (6 meter) and 213 ft (65 m) long dry-stone wall as part of a park where the landscape was digitally planned, and the earth autonomously excavated. The coolest thing ...

"You'll find a lot of people who build dry stone walls have fallen into it from varying backgrounds and it's just something you get hooked on," he says. Dry Stone Wall Association of Australia ...