The elegance of black lace and the might of iron become one in “Eiffel Tower Through the Gates,” shot by Alexandre Gustave Eiffel, the tower’s designer. Constructed in 1889 for the Paris World’s Fair, it is the city’s best-known landmark, visited by six million people each year. Now beloved as a marvel of strength and beauty, it was originally regarded as an eyesore, and was scheduled to be torn down after the fair.