Picea abies outside of its native range, and one of the most economically important coniferous species in Europe. It is used as an ornamental tree in parks and gardens. It is also widely planted for use as a Christmas tree. Every Christmas, the Norwegian capital city, Oslo, provides the cities of London (the Trafalgar Square Christmas tree), Edinburgh and Washington D.C. with a Norway spruce, which is placed at the most central square of each city. This is mainly a sign of gratitude for the aid these countries gave during the Second World War. In North America, Norway spruce is widely planted,
National Christmas Tree (United States) Christmas tree in the world. The cable new channel listed 12 trees, and put the National Christmas Tree behind the tree erected in Cathedral Square, Vilnius, Lithuania; the Lego Christmas tree at Legoland Malaysia; the Rockefeller Center Christmas Tree at Rockefeller Center in New York City; the tree at the Galeries Lafayette department store in Paris, France; and the "Floating Christmas tree" erected by oil company Bradesco Seguros in Rio de Janeiro, Brazil. The 2015 Christmas Tree was covered in amber and white lights that occasionally twinkled. The state and territory trees had the same color lights and were decorated