Do you know how to tie a tie? One day you may need to wear a tie for an interview or to go to a formal event. In this video Charles teaches us how to tie a Windsor knot. 

Are you interested in architecture? Have you ever thought about how the outside of a building could help the environment? Read this article to find out about research into buildings that can collect water and create energy. 

In some places in Northern Ireland you can see huge paintings on walls and houses. Watch this video and learn more about their interesting history.

Vandalism or contemporary art? Find out more about where street art has come from and where it might be heading.