Are you searching for London’s most exotic sky-high foliage-filled garden? Look no further than the top of the 37-storey Walkie Talkie building. Opened in January 2015, Sky Garden is a tropical indoor atrium that covers three floors located 155 metres above the ground. Quite impressive, right? No wonder it's the perfect spot to take in some of the best views over the whole city without paying a single penny. (Yes, access to the Sky Garden is free of charge!). Sky Garden Londo