Highgrove

The private residence of Prince Charles and the Duchess of Cornwall, a mile southwest of Tetbury, is famous for its exquisite, sustainable, organic gardens, which include rows of shape-clipped yews and a "carpet garden" modeled on an oriental rug. Two-hour garden tours run on select summer days, detailed on the website and varying from 17 days in a month to just one. They usually sell out far in advance, but last-minute tickets are sometimes available through Highgrove Shop.