On the meter: Taking a taxi in London and Kampala

Taxis are transport options in most cities around the world, but how do they vary in price around the globe?

In a BBC News series, six correspondents have compared the cost of a 10 km journey.

Tulip Mazumdar takes a trip in one of London's black cabs, while Gabriel Gatehouse is on two wheels in the Ugandan capital of Kampala.