
Grosvenor Museum
Chester's Roman story done properly: real tombstones from the fortress walls, a hands-on natural history gallery, and a walk-through period house at the back. Free, central, and the right size.
Hands-on museums and science centres. Several of the best ones are free.

Chester's Roman story done properly: real tombstones from the fortress walls, a hands-on natural history gallery, and a walk-through period house at the back. Free, central, and the right size.

Chester's Jorvik-style walkthrough of its Roman fortress: costumed legionaries, reconstructed streets and deliberately bad smells, tucked off Bridge Street. Weekends in term time, through the week in school holidays.

Free, indoors and better than it sounds: interactive science aimed at younger children, glassblowing demos, a picnic area and a small playground outside.

Five floors, free, and it covers three things small children reliably love: giant dinosaurs, an aquarium and a space gallery. The best wet-weather day within half an hour.

Hands-on science galleries and a glass rooftop observatory over the Mersey. Small, cheap, indoors and close.

Working steam engines, the story of Cottonopolis, and hands-on galleries in the world's oldest surviving passenger railway station. Free, and the live demonstrations are the bit kids actually remember.

A T. rex skeleton cast, live frogs in the vivarium, Egyptian mummies and a genuinely good natural history floor. Free, university-run, and less overwhelming than the big London equivalents.

Shirts, trophies and match footage across six floors, with penalty shootout and skills games that football-mad kids refuse to leave. If yours do not care about football, skip it - it is exactly what it says.