People take part in the 61st annual Walk along the Wire event in Ljubljana, Slovenia, May 6, 2017. "Walk along the Wire" was first organized in 1957 in memory of the barbed wire that kept the city under the lockout during World War II. This is one of the largest sports and recreational events in Slovenia, which every year attracts more than 30,000 participants. (Xinhua/Matic Stojs)
