Hollywood boasts some pretty unique couples, but none come close to Hafthor Bjornsson and his wife, Kelsey Henson. Hafthor is known for playing Gregor ‘The Mountain’in HBO’s hit series Game of thrones. The bulky Icelandic strongman is a staggering 6’9″ while his wife is 5’2″. Their apparent height difference is enough proof that the law of magnetism (unlike poles attract) holds even in love. The mountain is also the current world’s strongest man after deadlifting an incredible 501kg back in 2016.