WORLD CUP: Sun never sets in a St. Petersburg summer

In this photo taken on Thursday, May 3, 2018, people walk at Dvortsovaya (Palace) Square in St. Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, street actors dressed in 18th century costumes dance at Dvortsovaya (Palace) Square in St.Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, a general view of the soccer stadium Saint Petersburg, in St.Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, people walk at the Neva River embankment in St. Petersburg, Russia, with the city landmarks, Zimny (Winter) palace, Admiralty building and St. Isaac's Cathedral in the background. (AP Photo/Dmitri Lovetsky)

WORLD CUP: Sun never sets in a St. Petersburg summer

In this photo taken on Thursday, May 3, 2018, people walk at Dvortsovaya (Palace) Square in St. Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, street actors dressed in 18th century costumes dance at Dvortsovaya (Palace) Square in St.Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, a general view of the soccer stadium Saint Petersburg, in St.Petersburg, Russia. (AP Photo/Dmitri Lovetsky)
In this photo taken on Thursday, May 3, 2018, people walk at the Neva River embankment in St. Petersburg, Russia, with the city landmarks, Zimny (Winter) palace, Admiralty building and St. Isaac's Cathedral in the background. (AP Photo/Dmitri Lovetsky)