![Photo taken on April 10, 2019 shows a woman walking among flowers in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/d6d3460343c2400c96ed19b0f425973d.jpg)
Photo taken on April 10, 2019 shows a woman walking among flowers in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows a garden in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/ff5466438efc48028ed52b8b7f3cc4aa.jpg)
Photo taken on April 10, 2019 shows a garden in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows tourists taking photos with flowers outside the Croatian National Theatre in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/936bb7633cf144a8b95e61c738fe3678.jpg)
Photo taken on April 10, 2019 shows tourists taking photos with flowers outside the Croatian National Theatre in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows tourists taking photos with flowers outside the Croatian National Theatre in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/f9b8323ca95f4e13a9ddc5bbd9b19c79.jpg)
Photo taken on April 10, 2019 shows tourists taking photos with flowers outside the Croatian National Theatre in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows the flowers at the Botanical Garden in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/2a4b85a66a3a466ebf1de0d0f5a2525b.jpg)
Photo taken on April 10, 2019 shows the flowers at the Botanical Garden in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows the tulip flowers in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/b428d87d6f74464195840e996244f0e2.jpg)
Photo taken on April 10, 2019 shows the tulip flowers in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)
![Photo taken on April 10, 2019 shows the flowers at the King Tomislava Square in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)](http://www.ecns.cn/hd/2019/04/11/f4df7ec6aa2c4576bc1e84e4e4e1efc3.jpg)
Photo taken on April 10, 2019 shows the flowers at the King Tomislava Square in downtown Zagreb, capital of Croatia. (Xinhua/Zheng Huansong)