This colossal and magnificent-looking building is infused with the irrepressible Victorian spirit of collecting, cataloguing and interpreting the natural world. The Dinosaurs Gallery (Blue Zone) is a must for children, who gawp at the animatronic T-Rex, fossils and excellent displays. Adults for their part will love the intriguing Treasures exhibition in the Cadogan Gallery (Green Zone), which houses a host of unrelated objects each telling its own unique story, from a chunk of moon rock to a dodo skeleton.

Also in the Green Zone, the Mineral Gallery is a breathtaking display of architectural perspective leading to the Vault, where you'll find the Aurora Collection of almost 300 coloured diamonds. In the Orange Zone, the vast Darwin Centre focuses on taxonomy, showcasing 28 million insects and six million plants in a giant cocoon; glass windows allow you to watch scientists at work.

At the centre of the museum is Hintze Hall, which resembles a cathedral nave – quite fitting for a time when the natural sciences were challenging the biblical tenets of Christian orthodoxy. The hall is dominated by the over-arching cast of a Diplodocus skeleton (nicknamed Dippy), which is due to be replaced by the real skeleton of a diving blue whale (Balaenoptera musculus), hung from the ceiling, in 2017. The hall will be shut for the first half of 2017 to accommodate the changes, but the other galleries will remain open.

A slice of English countryside in SW7, the beautiful Wildlife Garden next to the West Lawn encompasses a range of British lowland habitats, including a meadow with farm gates and a bee tree where a colony of honey bees fills the air.

In 2018, the eastern grounds are also due to be redesigned to feature a geological and palaeontological walk, with a bronze sculpture of Dippy as well as ferns and cycads.

The entire museum and its gardens cover a huge 5.7 hectares and contains 80 million specimens from across the natural world. More than five million visitors come each year, so queues can sometimes get long, especially during the school holidays.