Gnomes Garden 3: The thief of castles
23 Achievements
Steam
Architect
For restoring Stonehenge
6.1%
How to unlock the Architect achievement in Gnomes Garden 3: The thief of castles - Definitive Guide
This is the goal for Level 16. Not much else to say, just that you'll have to wait until then.
On Level 16, you have to rebuild Stonehenge. The process to do this is very easy. At the start, just focus on clearing a path around the bottom edge of the map, making sure you get the Sawmill, Mill, and Fireman houses built. Then focus on the top portion, clearing a path to the Quarry. Then it is just a matter of gathering the materials and stones needed to build Stonehenge. While you are doing this, make sure you get your Worker House upgraded to 2 people which will make this go faster. You will have plenty of time to get this done. Once you have rebuilt Stonehenge, the trophy will pop.