Heading to Europe for a villa holiday is an ideal way to while away a week during the summer months. So where are the best places to go?FRANCELe Sarrail – three luxurious houses near Carcassonne in the south of France – comes with everything from a

. The Parque das Nações on the northeastern riverfront has the Oceanarium, the largest aquarium in Europe, home to 25,000 fish, birds and mammals, and is strikingly designed with a two-storey aquarium that features wildlife from across the globe. Travel from