This rather unassuming museum was created in the mid-1970s after two gardening enthusiasts came upon a medieval church, which, they were horrified to discover, was about to be bulldozed. The churchyard contained the tombs of two adventurous 17th-century plant collectors, a father and son both called John Tradescant, who introduced many new species to England. Inspired to action, the gardeners rescued the church and opened this museum. It has subsequently acquired one of the largest collections of historic garden tools, artifacts, and curiosities in Britain, in addition to creating beautiful walled gardens that are maintained year-round by dedicated volunteers. It's also worth visiting the church itself, which contains the tombs of William Bligh, captain of the Bounty, several members of the Boleyn family, and quite a few Archbishops of Canterbury. As well, there's a green-thumb gift shop and Garden Café, serving vegetarian lunches and home-baked cakes—the toffee-apple variety is a standout.