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.
Lisbon Christmas tree 2007, the Lisbon Christmas Trees and the Christmas Tree in Bucharest, Romania, both at 76 metres high, competed for the title of the tallest Christmas Tree in Europe. The Lisbon Christmas Tree kept its title as no Christmas tree has been erected in Bucharest in 2009. Lisbon Christmas tree The Lisbon Christmas tree is an Artificial Christmas tree erected annually in Lisbon, Portugal since 2004. From 2005, when it was an entrant in the Guinness World Records, the tree is called the "Europe's tallest Christmas tree". The height of the tree varies every year and it was the highest in