Watkin's Tower Eiffel Tower in Paris, France, Watkin invited Gustave Eiffel himself to design the tower, but the Frenchman declined – replying that if he designed the tower, the French people "would not think me so good a Frenchman as I hope I am." An architectural design competition was held in 1890, and a total of 68 designs were submitted. Some of the more exotic proposals included a £1m tower inspired by the Tower of Pisa; a structure with "a captive parachute to hold four persons"; and a tower with a spiral railway climbing its exterior. One design included a 1/12-scale model
Philadelphia City Hall 1871 to 1901 at a cost of $24 million. City Hall's tower was completed by 1894, although the interior wasn't finished until 1901. Designed to be the world's tallest building, it was surpassed during construction by the Washington Monument and the Eiffel Tower. Upon completion of its tower in 1894, it became the world's tallest habitable building. It was also the first secular building to have this distinction, as all previous world's tallest buildings were religious structures, including European cathedrals and—for the previous 3,800 years—the Great Pyramid of Giza. With almost 700 rooms, City Hall is the largest municipal building