The British Museum is the treasure chest of the world, with Sumer statues, the Mausoleum of Halikarnassus, mummies of Egypt, and treasures from Ephesus. It is all there. Almost anywhere historical where I have been, I have heard that some pieces were not present because they were being exhibited in the British Museum.
It is located a huge, luminous building in Bloomsbury. It may take a few days to see it all. But the museum management makes life easy for the visitor by closing some of the halls when they do not feel like exhibiting that day, with the excuse that they do not have enough personnel. That’s surprising, because none of the souvenir shops or countless restaurants are closed during museum hours due to lack of personnel.
The museum does not follow a chronological order, or any order at all. For example, you can see Greek statues on main floor, first floor, and lower floor. It is like this all over the museum. I found this very inconvenient and incorrect.
You can see the collection on the Internet before you leave, and once you are there, you know where to visit. For making your own guided tours, see www. Britishmuseum.ac.uk