Short answers, pulled from the story.
U.S. Bank Stadium was deemed substantially complete on the 17th of June 2016, and held its official grand opening on the 22nd of July 2016. The Vikings played their first preseason game there on the 28th of August 2016.
As of March 2015, the overall budget was estimated at $1.061 billion. The state of Minnesota contributed $348 million, the city of Minneapolis contributed $150 million, and the Vikings and private sources covered $551 million.
The roof is made of 60% Ethylene tetrafluoroethylene (ETFE), a fluorine-based clear plastic. It spans 240,000 square feet and is the largest ETFE roof in North America, installed by the firm Vector Foiltec.
U.S. Bank Stadium hosted Super Bowl LII on the 4th of February 2018, won by the Philadelphia Eagles 41-33 over the New England Patriots. It also hosted the 2019 NCAA Final Four, the ESPN X Games in 2018 and 2019, and in 2023 was ranked the top NFL venue by The Athletic.
On the 14th of January 2018, Vikings wide receiver Stefon Diggs caught a 61-yard pass on the final play of a divisional playoff game to beat the New Orleans Saints 29-24. The play became known as the Minneapolis Miracle.
The stadium uses highly reflective glass on its exterior and sits along the Mississippi Flyway migration route. Conservation groups had requested bird-safe glass before construction, but designers chose reflective glass for aesthetic reasons. A bird fatality study completed in 2019 found the stadium causes double the bird deaths of any other building in Minneapolis.