Just days after a fire ravaged Notre-Dame de Paris on April 15, 2019, France’s then-prime minister Édouard Philippe announced plans for an international competition to design a new, more modern spire “suited to the techniques and challenges of our time.”

Though not everyone supported the initiative, architects from all over the world made quick work of sharing their innovative ideas. Some imagined spires made from unconventional materials—Brazilian architect Alexandre Fantozzi favored stained glass, for example, and France’s Mathieu Lehanneur designed a flame-shaped spire covered in gold leaf—while others envisioned using the space for something completely different. Sweden’s Ulf Mejergren Architects suggested a rooftop swimming pool, and Studio NAB proposed a greenhouse.

But those architects will have to bring their inventive designs to life elsewhere. As artnet News reports, the French Senate recently passed legislation mandating that the cathedral be restored to its “last known visual state.” President Emmanuel Macron released a statement endorsing the decision and explaining that city officials would look to add a “contemporary gesture” in the “redevelopment of the surroundings of the cathedral” instead.

Though the 800-ton, 305-foot-tall spire was certainly one of Notre-Dame’s most striking features, it wasn’t actually part of the original building. The first spire, constructed between 1220 and 1230, began to deteriorate after several centuries, and it was removed in the late 1700s. The cathedral went spire-less until 1859, when builders completed work on architect Eugène Viollet-le-Duc’s new design—which, according to Popular Mechanics, wasn’t an exact replica of the original.

A 17th-century etching of Notre-Dame with its original spire.I. Silvestre, Wellcome Images, Wikimedia Commons // CC BY 4.0

This event could have set the precedent for updating the spire this time, but it’s possible that government officials were motivated by more than a simple commitment to architectural consistency. Last year, Macron had promised that the restoration would be completed by 2024, when Paris is scheduled to host the Summer Olympics. It’s an ambitious goal, and a worldwide competition to come up with a new design could have delayed the process more than reconstructing the spire as it once was.

[h/t artnet News]