A sanitation worker drives a street sweeper along the road in front of the Baku Olympic Stadium, the venue of the 13th World Urban Forum, in Baku, Azerbaijan, May 14, 2026. The World Urban Forum is set to be held in Baku from May 17 to 22. (Xinhua/Chen Junfeng)

The Baku Olympic Stadium, the venue of the 13th World Urban Forum, is pictured in Baku, Azerbaijan, May 14, 2026. The World Urban Forum is set to be held in Baku from May 17 to 22. (Xinhua/Chen Junfeng)

A bus printed with patterns of the 13th World Urban Forum is pictured at a station in Baku, Azerbaijan, May 14, 2026. The World Urban Forum is set to be held in Baku from May 17 to 22. (Xinhua/Chen Junfeng)

The registration hall for participants of the 13th World Urban Forum opens in Baku, Azerbaijan, May 14, 2026. The World Urban Forum is set to be held in Baku from May 17 to 22. (Xinhua/Chen Junfeng)