Lincoln Guildhall

The Guildhall sits bang in the middle of Lincoln's High Street, a timber-framed medieval building that stops you dead. It's one of the oldest civic buildings in England, dating back to the 14th century, and you can see why - the thing practically leans with age, all dark oak and crooked beams in the best possible way.

Inside, it's properly atmospheric. The main chamber where the town council met for centuries takes up most of the ground floor, with a courtroom where people were actually tried and sentenced. Upstairs there's a lock-up where prisoners were held before being taken elsewhere - cramped, cold, grim. The building's been done up but not in a sterile way; it feels lived-in.

This is really for anyone interested in medieval urban life or local history. Architecture enthusiasts will spend a good hour here. Kids might manage 30 minutes unless they're keen on the gruesome bits - the lock-up usually gets a reaction. It's free entry, which is generous given how few places of this calibre don't charge.

Allow an hour if you're thorough. Pop in as part of a Lincoln walk rather than treating it as a standalone trip - the cathedral and castle are both minutes away. If you're based at Hartsholme Country Park just 2 miles south, you're ideally placed for exploring the city centre without needing the car every time. It's genuinely worth the detour even for a quick look.