===Not proven===*Basilica of San Sebastian, Manila, Philippines (1891)*(Bridge over the Cuyuni River, southern Venezuela)*Santa Efigênia Viaduct, São Paulo, Brazil (1913)*Santa Justa Lift (Carmo Lift), in Lisbon, Portugal (1901)*Dam on Great Bačka Canal, Bečej, Vojvodina, Serbia (1900)*Malleco Viaduct, Chile (1890)*The Chateau de Villersexel, France (c. 1871)*"Vuelta al Mundo", Córdoba, Argentina*Watermill, Dolores, Córdoba, Argentina*Casa del Cura (also called Casa Eiffel), in Ulea, Spain (1912)*Palácio de Ferro (Iron Palace), Angola===Unrealized projects===*Trinity Bridge, Saint Petersburg—Eiffel entered a project into the contest, but his project was not realized.
*Most Trường Tiền v mestu Huế, Provinca Thừa Thiên–Huế, Vietnam*Most Bolívar, Arequipa, Peru*"Puente Ferroviario Banco de Arena" železniški most v Constitución, Čile*Most v Trujillo Alto (še vedno obstaja, vendar ni več v uporabi), Portorico*Puente Libertador, San Cristóbal, Venezuela.