Read Leicester Square review for details as it's mentioned (if you haven't read it, I don't write this stuff for my own entertainment!). Walk through to the haunting picture of the Execution of Lady Jane Grey (painted in Paris in 1830). From their the main national collection is at your feet well about 10% of it anyway, rest is in storage as there isn't the room.
If you like art you will love this place, there is rooms and rooms of paintings
All of Great Britains most important people reside here!
I must admit I have only been to the bathrooms, but it has a lot of great stuff.
The National Gallery is full of wonderful art masterpieces. A must see for all art lovers.
Free. Museum with some must see art! No excuse not to go. Great variety.