Made up of more than 16,000 english yews,Longleat’s spectacular hedge maze —the world’s longest— was first laid out in 1975 by designer Greg Bright. The Maze covers an area of around 1.48 acres (0.6 hectares) with a total pathway length of 1.69 miles (2.72 kilometres). Unlike most other conventional mazes, it’s actually three-dimensional, with six wooden bridges offering tantalizing glimpses towards the elusive centre of the maze, which is marked by an observation tower for visitors who manage to find it.