Located in Paris, France, the world-famous Eiffel Tower is a unique and enduring symbol of France. It was built to showcase the city's industrial genius and French know-how at the 1889 World's Fair. Today, more than seven million people visit this iconic structure every year. Here are some interesting facts about this famous landmark. You may be surprised by some of them! Listed below are some of the most important facts about the tower. The tower was not always popular. During the Second World War, Nazi soldiers attempted to attach a large swastika flag to the tower. They even climbed to the top floor to do so. However, the swastika flag was viewed by the Germans as deeply symbolic and signified the beginning of the German Empire. In addition to this, you may be surprised to learn that a post office has an exclusive stamp bearing the Eiffel Tower's address. The tower's color used to be a red-brown color. Later, it turned bronze. During the construction, 72 scientists and engineers were involved. Today, you can find various restaurants and bars located at the top of the tower, offering spectacular views of the city. A trip to Paris would not be complete without a visit to the Eiffel Tower. It has an incredible 1, 710 steps! However, it is prohibited to take pictures at night, due to copyright laws.