216pc "Eiffel Tower" 3D Puzzle. Ages 10+. 3D puzzling taken to a new dimension! The first thing that comes to mind when thinking of Paris is the Eiffel Tower. This city's famous landmark was built between 1887 and 1889 for the World's Fair in Paris on the 100th anniversary of the French Revolution. Attracting more than 6 million visitors each year, it belongs to the most popular structures in the world.