Some restaurants innovate with their menu and some with their ambiance, but it is the service of the Roller Coaster Restaurant in UK that impresses diners. The restaurant has replaced regular waiters with a 400-metre long steel track, through which the food glides down to your table directly from the kitchen. The track has a loop-in-loop as well and you can watch your food take a roller coaster ride in front of you. Even the order is placed on a tablet, eliminating the need for any human interaction.