The building in the background is the Imperial Citadel of Thang Long, part of the imperial structures that served as the capital of Dai Viet from the 11th to the 18th century. The building, very much in a Chinese style, is in the center of Hanoi. The boys in their bright tee shirts with a yellow star against a red background – the Vietnamese national flag – were part of a coed group of 20ish kids, I presume a university class on an outing. All of the boys were wearing the red tees. I rather liked the contrast: young people wearing the symbol of modern, socialist Vietnam against a traditional background representing the country’s imperial past.