Documentary exploring the royal garden, a key place for new monarchs to make their mark. Henry VIII's original hunting grounds are now central London's royal parks. King Charles spent decades transforming Highgrove, and the late Queen and Prince Philip reworked Victoria and Albert's Balmoral Estate. Multi-purpose green spaces act as a source of income, a place to relax, and perhaps most importantly somewhere to host spectacular parties.

A country steeped in history and tradition, Wales's relationship with the royals has been somewhat rocky over the centuries - filled with bloody 13th-century battles and times of oppression. Today, however, arguably things are in much better shape. After more than 50 years as the Prince of Wales, it's safe to say that Welsh cake is a staple of the King's afternoon tea.