From thrilling rollercoasters to interactive games, theme parks are always inventing new and more exciting ways to keep people entertained. But the concept of a theme park, or amusement park, actually dates back as far as the Middle Ages, when travelling fairs would bring markets and live entertainment to towns and villages. In Victorian times, pleasure gardens kept people entertained, with music and theatre, social events, street entertainment, and al fresco dining. At the same time,