Tour of Beirut's divided streets
21 December 2011 Last updated at 01:16 GMT
The Lebanese capital Beirut is enjoying something of a renaissance at the moment, attracting tourists and investment.
But the city itself is still split into political and sectarian enclaves, marked by graffiti, posters and flags. Beirutis are often reluctant to cross their self-imposed borders.
Caroline Anning explored the city to find out why, 21 years after the civil war ended, Beirut remains divided.