The roof of the Bolshoy Ice Dome, the main home of Sochi’s Olympic ice hockey tournament, fully lights up at night, using a handmade aluminum-paneled dome that drapes over the side of the building and is studded with 38,000 LED lights.
But what's even cooler than that? The score -- with each country’s flags to help viewers know who's playing -- displays on the entirety of the outside of the arena every time a country sends the puck into the net inside the 12,000-seat venue.
When the lights aren't on, the silver-gray roof appears a touch bland. But at night, those lights sure attempt to make up the difference.
Here's a tweet of the Bolshoy Ice Dome's roof displaying the score.
Tim Newcomb covers stadiums, design and technology for Sports Illustrated. Follow him on Twitter at @tdnewcomb.