Visitors to Keelung, a mountainous port city on Taiwan's northern coast, might reasonably think that the white wall at the back of Shi Hui-hua's breakfast shop is, well, a wall. Only a few air vents suggest that there might be something on the other side.
There are close to 700 bomb shelters in the city that have become a canvas for creative urban renewal and civil defence. Read more at straitstimes.com.