1. Rooftop Tennis Court, Dubai
Tennis is an incredible sport to watch and play but how’s about playing tennis at a stomach-twisting height of 1,000 feet? The sky-high helipad tennis court in Dubai is the world’s highest tennis court and was a temporary installation atop the Burj al Arab luxury hotel, built in the lead-up to the Dubai Duty Free Men’s Open in 2005. The incredibly skilled Andre Agassi and Roger Federer were invited to play a game for fun before the real competition began.