Birmingham man jailed after 'bizarre' eight-year neighbour feud at tower block

Mohammed Bostan, 40, repeatedly entered the victims' apartment without permission, poured bleach and petrol over their front door, brandished knives and made countless threats to the Birmingham couple and their four children over eight years

The Regent International Center in Hangzhou, China, is the world's most populous apartment block - and it is easy to see given its hulking size