Natural History Museum

The Natural History Museum in South Kensington is one of the finest museums in the world and arguably London's single best family destination. It is free, it is vast, it is genuinely beautiful — the Romanesque terracotta building is as much an attraction as what is inside — and it has an almost uncanny ability to hold the attention of children from toddler age right through to teenagers. The opening moment, walking into Hintze Hall to see Hope the blue whale skeleton suspended from the ceiling, is one of those rare museum experiences that lands physically — the scale alone is breathtaking.

From there, the options are almost overwhelming: the animatronic T. rex in the dinosaur galleries, the earthquake simulator in the Earth galleries, the giant sequoia cross-section, the mineral and gem halls, the Darwin Centre cocoon where you can watch real scientists at work, and the creepy-crawlies gallery that has been delighting and disturbing children for decades. Family activity backpacks and trail maps are available at the entrance and turn the visit into a structured adventure for younger children.

The wildlife photographer of the year exhibition is paid but worth it for older kids. On busy weekend days, queues to enter can be significant — arriving at opening time or visiting on a weekday makes a material difference. The on-site cafes are good but expensive; packing your own lunch is a sensible approach.