National History Museum

Cromwell Road London SW7 5BD
02079425000

Opened everyday until 5:30pm (except 24-26th of dec)

http://www.nhm.ac.uk/

The dinosaur expo is fascinating for kids interested in it.

Westminster Abbey

http://www.westminster-abbey.org/

Until 6 or 7pm passing the gate (right of the church) you can enjoy a walk through the Westminster Abbey Choir School up to Tufton Street. 

Greenwich Park

A nice park with woods, playground and beautiful view on London city.


http://www.royalparks.gov.uk/Greenwich-Park.aspx