Vacation

Two weeks later, I going to London. I can't wait!

Two weeks from now, I am going to London.

or

In two weeks, I will be going to London.

Do you have recommend place?

Do you have recommendations for places to see?

or

Do you have recommendations for places to visit?

In this case 'to see' (見る) and 'to visit' (訪問 I believe) can be used to mean the same thing, although the more common way would be to ask 'What should I do?' or 'What should I see on my trip?' or even 'What do you recommend I do or see in London?'

And to answer your queston, the British Museum is very nice! Covent Garden is full of shops. Have fun!