![](http://www.ecns.cn/hd/2019/06/19/6dbbd5ea7d9b4058afe12a2f16d6fb7f.jpg)
A brig with scarlet sails travels through the Dvortsovy (Palace) drawbridge rising above the Neva River during a rehearsal for the the Scarlet Sails festivities marking school graduation which will take place on June 24 in St. Petersburg, Russia, early Monday, June 17, 2019. (Photo/Agencies)
![](http://www.ecns.cn/hd/2019/06/19/31e1736398e844d999f5feed8b8a24b7.jpg)
A brig with scarlet sails travels through the Dvortsovy (Palace) drawbridge rising above the Neva River during a rehearsal for the the Scarlet Sails festivities marking school graduation which will take place on June 24 in St. Petersburg, Russia, early Monday, June 17, 2019. (Photo/Agencies)
![](http://www.ecns.cn/hd/2019/06/19/b6e391d484f5496fab0e14db2c869ea2.jpg)
A brig with scarlet sails travels through the Dvortsovy (Palace) drawbridge rising above the Neva River during a rehearsal for the the Scarlet Sails festivities marking school graduation which will take place on June 24 in St. Petersburg, Russia, early Monday, June 17, 2019. (Photo/Agencies)
![](http://www.ecns.cn/hd/2019/06/19/7d8d665142aa4164ae7fd15b0cd271b2.jpg)
A brig with scarlet sails travels through the Dvortsovy (Palace) drawbridge rising above the Neva River during a rehearsal for the the Scarlet Sails festivities marking school graduation which will take place on June 24 in St. Petersburg, Russia, early Monday, June 17, 2019. (Photo/Agencies)
![](http://www.ecns.cn/hd/2019/06/19/848d29d25a264faca3407d63fecfff83.jpg)
A brig with scarlet sails travels through the Dvortsovy (Palace) drawbridge rising above the Neva River during a rehearsal for the the Scarlet Sails festivities marking school graduation which will take place on June 24 in St. Petersburg, Russia, early Monday, June 17, 2019. (Photo/Agencies)