In 2010 Hanoi celebrated its 1,000 year anniversary, just months after we moved here. One of the projects that was completed around that time was a ceramic mural decorating the wall along a long stretch of the road. It was awarded the Guinness World Record of “world’s largest ceramic mosaic.” In total the mosaic is 3,850 linear meters (6,950m²) and runs alongside about 6 km of roadway. There are some excellent sections that depict periods of Vietnamese history or significant places in Hanoi, along with many other themes and patterns.
Note: Cache is not in the plants or on the ground. Don't waste time searching these areas.