Designed by German architect Ole Scheeren, Singapore’s Interlace apartment complex was named 2015 World Building of the Year for its innovative form, which resembles 31 conventional buildings stacked atop one another, like Jenga blocks. Each block comprises six stories, but they’re stacked four high, so there’s a maximum of 24 floors, and nearly every unit has an excellent view. Viewed from above they form eight hexagons, each with a swimming pool, and the stacking ensures that light and air can flow among the blocks.

In Architecture Review, Laura Raskin wrote, “Architect Ole Scheeren hypothesized that dense urban residential living didn’t have to occur in an isolating skyscraper — and he was right.”