Which museums in London are the most interesting to visit?

Bilbo....I like natural history and astronomy

Very much depends on age or if you are a boy or a girl.

Best place I think is the Natural History Museum

Natural History Museum
Last admission is at 17:30. Natural History Museum at Tring opening times.
Natural History Museum, Cromwell Road, London SW7 5BD, UK. ...
http://www.nhm.ac.uk/ - Cached

Library and archives - Natural History Museum
The home page of the Natural History Museum (London)'s Library and Information
... The Museum鈥檚 Library and Archives hold the world's premier collections of ...
http://www.nhm.ac.uk/research-curation/l... - Cached

Dinosaurs: The Natural History Museum's Dino Directory
A database of dinosaurs including images and a timeline, as well as indexing by
body type and country of origin.
http://internt.nhm.ac.uk/jdsml/dino/ - Cached

Most people go for the dino collection, which I think you can see on-line at one of the links above.

Here's another bunch of museums in London you can also visit : -

Victoria and Albert Museum
Museum of the decorative arts founded in 1852 to support and encourage excellence
in art and design. Located in London, England.
http://www.vam.ac.uk/ - Cached

Science Museum
London museum and library of science. Exhibitions cover all areas of science and
technology. Includes online exhibits and a learning area.
http://www.sciencemuseum.org.uk/ - Cached

British Museum - Welcome to the British Museum
Welcome to the British Museum website. The Museum houses a vast collection of
world art and artefacts and is free to all visitors.
http://www.britishmuseum.org/ - Cached

Museum of London - English
World's largest urban history museum with 1.1 million objects. Includes details
of collections, hours, events, current and future exhibitions, ...
http://www.museumoflondon.org.uk/ - Cached

Welcome to the Imperial War Museum
Visit Imperial War Museum London The wars of the twentieth century have affected
each ... The UK National Inventory of War Memorials has created a growing ...
http://www.iwm.org.uk/ - Cached

If you come over to Greenwich where I live, we've got the Royal Observatory and the Maritime Museum

Royal Observatory : What's on : NMM
Royal Observatory Greenwich. Have your photo taken standing on the Prime Meridian
of the world, with a foot in the eastern and western hemispheres. ...
http://www.rog.nmm.ac.uk/ - Cached

History of the Royal Observatory, Greenwich : History of the ...
The Royal Observatory was founded in 1675 by Charles II specifically to solve to
problem of longitude (one's exact postion east or west), when at sea and ...
http://www.nmm.ac.uk/server/show/conWebD... - Cached

National Maritime Museum: sea, ships, time and the stars : NMM
ADMISSION FREE*. National Maritime Museum. Greenwich. London SE10 9NF. OPEN DAILY.
*Opening times and admissions 路 Promo panel - Collections online ...
http://www.nmm.ac.uk/ - Cached

You can wanter around the grounds and gaze at Sir Christopher Wren's real masterpiece, the Royal Naval College at Greenwich which sweeps down to the sea : -

The Old Royal Naval College, Greenwich N060940 (From English Heritage)
OLD ROYAL NAVAL COLLEGE, Greenwich, London. An aerial view of the baroque Naval
College, Queen's House, National Maritime Museum and Greenwich Park with The ...
http://www.englishheritageprints.com/pic... - Cached

Natural History

Victoria & Albert

Science

The most famous are the National Gallery and British Meseum.I visited also the wax meseum,Madame Taussaud,it's artistic.

it depends on what age group your thinking of - if its for children then i would say the national sceince museum as there lots of things to do to keep them occupied

Natural museums you can see the dinosars fosil and you can also go to the science museum which is not far from each other I guarantee you you will have lots of fun.

Science Museum is great for kids
Ditto Natural History Museum
(brilliant building as a bonus)
V & A for art /costume etc
Museum of London for er, London
British Museum for classical art etc
Geffrye Museum for dometic interiors
London Transport Museum
Museum of Mankind

What are you interested in? (nuff said)

Royal Observatory Greenwich
(being extended at the moment but still open)

I would say the Tate Modern.

Horniman Museum is just outside of london, but it has a fantastic collection.