They opened the National Stadium in Warsaw for the football Euro

Warsaw - With a several-month delay, the National Stadium was officially opened today in Warsaw, where matches of the European Football Championship will be held in June. The ceremony began with a concert that attracted over 30,000 spectators, and according to the PAP agency, a fireworks display is planned for the evening.
The stadium was supposed to open last summer, but construction errors delayed the deadline. The arena, with a capacity of 58,000 seats, was built on the site of the former Decade Stadium, which was constructed in the 1950s and had been home to a huge marketplace since the late 1980s. In September 1968, Ryszard Siwiec set himself on fire during the communist harvest celebrations at the Decade Stadium in protest against the occupation of Czechoslovakia by Warsaw Pact troops.
The renovation of the stadium cost nearly two billion zlotys (approximately 12 billion crowns) and began in September 2008. The stadium will feature, among other things, four restaurants, ten kilometers of stairs, 70 VIP boxes, 965 toilets, and 1,765 parking spaces. Nearly 400,000 tons of concrete were used for the construction.
A significant question mark hung over today's grand opening until the very last moment. Firefighters and health officials opposed it, and only on Friday did the authorities give their approval. The first match will take place at the new stadium in less than two weeks, where the players of Legia Warsaw and Wisła Kraków will compete for the Supercup on February 11.
The National Stadium is located on the eastern bank of the Vistula River on the edge of the Warsaw district of Praga. It is here that the opening match of the European Championship will be played on June 8 between Poland and Greece.
The tournament, which will last until July 1, will be held in four Polish and four Ukrainian cities. Group A will be hosted by Warsaw and Wrocław, where all three matches of the Czech representatives will take place. Group B will have its centers in the Ukrainian cities of Kharkiv and Lviv, Group C will be welcomed by the Polish cities of Gdańsk and Poznań. Group D will take place in Ukraine in Kyiv and Donetsk.