In which U.S. city was a proposed project by architect Antoni Gaudí commissioned but never built?

Hotel Attraction was a proposed project by architect Antoni Gaudí, for a skyscraper in New York City.

The project was commissioned in May 1908. Planned at a total height of 360 metres, many believed its futuristic design to be unrealistic for its time. Little is known about its origin, and the project remained unknown until 1956, when a report by Joan Matamala i Flotats (Architectural sculpture) was published, called "When the New World called Gaudí".

The drawings for the Attraction Hotel were proposed as a basis for the rebuilding of Ground Zero in Manhattan. A modified version of the drawings by Paul Laffoley (visionary artist and architect) earned broad media attention. The architect planned to feature a memorial at its base and the Sphere for Plaza Fountain as center of an observation platform at the top of the hotel.