Six million people visited the "Arc de Triomphe, Wrapped" when the iconic Paris monument was shrouded in fabric as a posthumous tribute to artists Christo and Jeanne-Claude, according to estimates released this week.
The monument, which towers over the famous Champs Elysees, was covered in 25,000 square metres of silver-blue recyclable polypropylene for three weeks in September and early October.
It was the long-held dream of Bulgarian-born Christo, who died last year at age 84, and his late wife Jeanne-Claude, ever since they rented a nearby apartment in the 1960s.
The couple were renowned for wrapping huge public monuments around the world.
A third of the visitors to the wrapped Arc were foreigners – a sign of the gradual return of tourists to the world's most visited city as the pandemic eased this summer.
The estimates were based on a combination of mobile phone and transport data gathered by city and tourism authorities.
The total beats the five million estimated to have seen "Wrapped Reichstag" in Berlin in 1995.
The couple also wrapped the oldest bridge in Paris, the Pont-Neuf, in 1985, though visitors were not counted at that time.
The Arc project was overseen by Christo's nephew Vladimir Javacheff in coordination with the Pompidou museum and French authorities.
The cost of 14 million euros was funded by the sale of original artworks by Christo.
For Christo, who left sketches and photo montages of his plans, the vision was that the Arc would become "like a living object stimulated by the wind and reflecting the light".