[AlvinLuo]

London's a great city to visit and it doesn't have to be expensive if you don't want it to be. I've found that it is actually possible to visit London on a budget! There are plenty of museums in London that are free (apart from some special exhibitions).

Two of the best are The Natural History Museum and the Science Museum, both museums are located in South Kensington and are open seven days a week. The Natural History Museum is great for anyone who is interested in nature. September would be the best time to visit, as a new building called the Darwin centre is opening, which gives the public a chance to see real scientists at work. If this doesn't appeal and you wish to have a more hands-on experience then the Science Museum is the one for you! It is here that you can shout down a giant tube, play with huge spinning drums and even morph your face to make yourself look younger!

A visit to the British Museum is also free and lets you explore different world cultures. These include the Aztecs, where you can see the masks of Xipe Totec and Ancient Egypt that displays the Mummy mask of Syros. The British Museum is located on Great Russell Street and is also open seven days a week.

If you're looking to gain some knowledge on London and to learn about its history, then the Museum of London located on London Wall, is the place to visit. Entry is free and the permanent galleries at this museum include Roman and Medieval London.

If art galleries are more your thing, then the Tate Modern is a must! Entry is free and the Tate is also open seven days a week. Here you can find pieces of art for everyone's taste and they even have exhibitions to keep the kids entertained. The National Portrait Gallery located on St Martins Place is a fantastic building to visit and the Beatles to Bowie: The 60s exposed exhibition opens in October.

The best way to get to all these museums is on London's public transport. An oyster card will be the cheapest way to travel round London and can be used on buses, tubes and trams. They are pay as you go cards so you can just top them up, as you need them.

If you want to find cheap places to stay in London, then read a London travel guide for some recommendations! They might even recommend some good value for money restaurants to eat out at too!