Eiffel Tower,wrought-iron tower in Paris,a landmark and an early example of wrought-iron construction on a gigantic scale.It was designed and built by the French civil engineer Alexandre-Gustave Eiffel for the Paris World's Fair of 1889.The tower,without its modern broadcasting antennas,is 300 m (984 ft) high.The lower section consists of four immense arched legs set on masonry piers.The legs curve inward until they unite in a single tapered tower.Platforms,each with an observation deck,are at three levels; on the first is also a restaurant.The tower,constructed of about 6300 metric tons (about 7000 tons) of iron,has stairs and elevators.A meteorological station,a radio communications station,and a television transmission antenna,as well as a suite of rooms that were used by Eiffel,are located near the top of the tower.
　　Provence is a former Roman province and is now a region of southeastern France,located on the Mediterranean Sea adjacent to France's border with Italy.It is now part of the administrative région of Provence-Alpes-Côte d'Azur.The traditional region of Provence encompasses the départements of Var,Vaucluse,and Bouches-du-Rhône in addition to parts of Alpes-de-Haute-Provence and Alpes-Maritimes.
Provence is bounded by the Alps to the east and the Rhône River to the west,with the Mediterranean Sea providing its southern border.It has an unusually varied physical aspect,with landscapes ranging from fertile plains in the Rhône valley,to mountains in the east (notably Mont Ventoux,the Luberon and the Alpilles) and marshlands in the south (the Camargue).
The Principality of Monaco is nestled between Nice and Italy.Marseille,Aix-en-Provence,Avignon and Arles are other cities of importance in Provence.Marseille is by far the largest city in Provence,and is the chef-lieu (capital city) of both the Bouches-du-Rhône département and of the Provence-Alpes-Côte-d'Azur région.
The climate of Provence is typically Mediterranean,warm and dry.The Mistral is a strong,cold wind from the north that occurs mostly in the winter and spring