Burj Al Arab is one of the highest buildings located in Dubai. Can you imagine building a tennis court above this building? This sound very adventurous. Actually, what happened was in 2005, the helipad on top of this building was converted to a tennis court for some time. It was a public stunt performed by the great players of tennis. It may have been a stunt, but it was still the highest and most adventurous tennis court in the world.