The Record-Breaking Mosaic Wall of Hanoi

“Where is the world’s longest mosaic wall?” Who among us hasn’t stayed up long nights contemplating this conundrum? Well, sleep easy, friends, for we have the answer. The world’s longest mosaic wall is in Hanoi, Vietnam.

Completed in 2010 to celebrate the millennial anniversary of Hanoi, the Hanoi Mosaic Road beautifies the walls which protect the city from floods, covering them with mosaics for a length of nearly seven kilometers. That’s enough for the Guinness Book of World Records, into w...