London Natural History Museum

This is not the Science Museum, but the Natural History Museum.

Wikipedia:
The Natural History Museum is one of three large museums on Exhibition Road, South Kensington, London (the others are the Science Museum, and the Victoria and Albert Museum). Its main frontage is on Cromwell Road.

The museum is home to life and earth science specimens comprising some 70 million items within five main collections: Botany, Entomology, Mineralogy, Palaeontology and Zoology. The museum is a world-renowned centre of research, specialising in taxonomy, identification and conservation. Given the age of the institution, many of the collections have great historical as well as scientific value, such as specimens collected by Darwin.

The museum is particularly famous for its exhibition of dinosaur skeletons, and ornate architecture - sometimes dubbed a cathedral of nature - both exemplified by the large Diplodocus cast which dominates the vaulted central hall.

Originating from collections within the British Museum, the landmark Waterhouse building was built and opened by 1881, and later incorporated the Geological Museum. The Darwin Centre is a more recent addition, partly designed as a modern facility for storing the valuable collections.