The battlefield of The Mountain vs. the Viper ⚔️⁣ ⁣ The epic #GameofThrones trial by combat was filmed in the amphitheater of Hotel Belvedere in Croatia, which was one of Europe's finest hotels in the 1980s. The hotel was damaged and abandoned during the Croatian War of Independence.⁣ ⁣ 📺 Learn more on #MysteriesOfTheAbandoned, 8p ET on Discovery