This Spiral staircase is part of a structure call The Battle Box, a hidden WWII underground bunker in Fort Canning - Singapore, opened to the public not many years ago. I want to take a good shot of the staircase but it is crowded with people queuing to pose, so I will occasionally pop by when I'm nearby looking to see if I can get a good aiming spot, and was really in luck this time to snagged a hard to get sweet corner facing the staircase, not blocking people posing and nobody blocks me. Unhindered, I snapped many shots as bubbly youths go up the stair, posed and come back down.