Grantham Medieval Onion Fair

A proper bit of daft, lovable local history — Grantham's onion fair dates back to a 1484 royal charter, and this revival brings back market stalls, local produce, street theatre and historical re-enactments, with an onion-eating contest for anyone brave enough.

Free, unpretentious and exactly the kind of small-town event that rewards a detour off the A1.