We asked our readers to send in their best pictures on the theme of "waterfalls". Here is a selection of the photographs we received from around the world. Krzysztof Suchnicki took this picture of ...

Image caption, Allie Nelkon sent in this picture taken at the Gocta Waterfall, Peru: "Although this waterfall is the 16th highest in the world, it was kept a secret by locals for many years and ...