Good view, too. From veranda:
When designer Gustave Eiffel finished his tower in 1889, he built himself a secret apartment on the third level, almost 1,000 feet above Champ du Mars. In Eiffel’s time, the small room was filled with wooden furniture, colorful patterned wallpaper, and a grand piano. The apartment also held a small laboratory area, which the designer outfitted with the time’s most high-tech scientific equipment.
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More here.