As of July 2020, where is the world's oldest surviving hedge maze?

A hedge maze is an outdoor garden maze, or labyrinth, in which the "walls" or dividers between passages are made of vertical hedges. The world's oldest surviving hedge maze can be found at Hampton Court Palace, near London, in the UK.

King William III commissioned the maze and royal gardeners George London and Henry Wise began planting around 1690. Hornbeam was originally used for the hedges although this was later replaced with Yew. It covers an area of 0.2 ha (0.5 acres), with a total path length of 800 m (0.5 miles).

The maze was designed in a trapezoid shape, due to pre-existing paths, and can be found in the 'wilderness' section of Hampton Court's gardens.

The general public had their first chance to tackle the maze when the Hampton Court gardens first opened in 1833. The maze is not considered to be difficult to navigate, with most people reaching the centre from the start in 20 minutes or less.

Hampton Court Palace was originally built for Cardinal Wolseley at the beginning of the 16th Century. It was later owned by, and also a favoured residence of, King Henry VIII. The Palace is now owned by Queen Elizabeth II and is a significant asset of her Crown Estates portfolio.