Trafalgar Square Authority in conjunction with the charity Unicef, who began ticketing the event to control crowd numbers. A Christmas ceremony has been held in the square every year since 1947. A Norway spruce (or sometimes a fir) is presented by Norway's capital city, Oslo as London's Christmas tree, a token of gratitude for Britain's support during World War II. (Besides war-time support, Norway's Prince Olav and the country's government lived in exile in London throughout the war.) The Christmas tree is decorated with lights that are switched on at a seasonal ceremony. It is usually held twelve days before Christmas Day.
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