2. Shanghai Tower, China.
Moving on to the second tallest building in the world - Shanghai Tower, obviously located in Shanghai. Standing at 632 metres with 128 floors, it’s also the tallest twisted building and has the highest viewing deck in the world. The tower is also home to the J Hotel, a concert hall, plus many restaurants, bars and lounges. I highly suggest visiting on one of Shanghai’s rare clear, blue sky days, as the visibility will be next to nothing through the smog.