The phrase "5-star" can strike fear into any traveller’s wallet, immediately conjuring up images of butler services, hushed restaurants and, most importantly, an extremely pricey bill at the end. However, it really is possible to stay at a 5-star hotel for a 3-star price. We’ve tracked down some of the best value 5-star properties around the world, from city centre hotels in the middle of the action to boutique retreats right on the beach.