Queen Elizabeth has re-opened the National Army Museum.

Queen Elizabeth

Queen Elizabeth

The 90-year-old royal and her husband, Prince Philip, toured the visitor attraction in London on Thursday (16.03.17) after it recently completed extensive three-year redevelopments which cost the hefty sum of around £23.75 million.

Queen Elizabeth and Prince Philip - who were greeted outside of the venue by their youngest son Prince Edward - were given the tour of the museum in advance of the attraction re-opening to the public later this month.

The National Army Museum was first founded in 1960 by Royal Charter and was established to collect, preserve, and exhibit objects and records relating to the land forces of the British crown.

Now, the museum - which is based in the London district of Chelsea - has been transformed into five galleries which each host a different theme.

The exhibitions include solider, army, battle, society, and insight, and provide a space to explore and discuss the British Army and its relevance to society.

One particular exhibit at the museum is Queen Elizabeth's very own uniform from when she held the honorary commission of Brigadier in the Women's Royal Army Corps (WRAC) from 1949 to 1953.

The museum acquired the uniform in 1993, after the WRAC disbanded in 1992.

During her visit to the National Army Museum, Queen Elizabeth also took the time to speak to donors inside the attraction's café, before speaking to staff and volunteers outside who assist with the running of the museum.

The Queen also unveiled a commemorative plaque to mark her visit.

The National Army Museum will officially open its doors to the public once again on March 30, and admission to the attraction is free.