Safdie Architects have unveiled their design for an expansion to the Marina Bay Sands Resort in Singapore. Linking to the existing resort and waterfront development, the project takes cues from the original three hotel towers completed in 2011. Safdie Architects will expand the existing resort with a new stand-alone hotel tower with about 1,000 suites and its own sky roof and swimming pool, as well as a 15,000-seat music arena.