The most popular Instagram photos of the year, taken by Reuters photographers around the world

Photo agency Reuters has one of the most popular Instagram accounts with more than 520,000 followers.

Each day it posts the best images captured by Reuters photographers around the world, with compelling imagery accompanied by stories that need to be shared.

Here are the original photos of Reuters' 25 most popular Instagram posts from 2015, based on likes and comments, along with their original captions.