One of them is the "National Treasure 2". It deals with the adventures of a group of people who search a very valuable and enormous treasure. There are some written riddles about how to find the treasure and they have to solve them. Actually the riddle does not take them directly to the treasure, but it takes them to another riddle. The treasure they are after is the national treasure of America and their goal is not to be the owner of it, but to be the discoverer of the national treasure and present to the the United Nations. Finding the treasure is so comlicated that they even have to kidnap the president of America as a part their search. What's more, they have rivals who also want to have the treasure and they have to fight with.
Despite the challenges, they accomplish the mission and become famous as the discoverers of America's national treasure "the golden city".


