It was the dress that launched Kate Middleton mania (and a thousand knock-offs). Now, the infamous Sarah Burton for Alexander McQueen wedding gown is also responsible for attracting a record-breaking amount of visitors to Buckingham Palace this summer.

Middleton‘s wedding dress was put on display in late July–and since then, according to People, “more than 600,000 people” have come for a glimpse of the frock, encased in glass at an exhibit at Buckingham.

To put this in perspective, People reports that last year the Palace drew only 413,000 visitors, and that the previous all-time high was in 1994 with 420,000 visitors, which means that Middleton’s dress broke the record by over 180,000. And that’s nothing to sneeze at. Especially since Alexander McQueen’s record-breaking retrospective Savage Beauty drew 661,509 people to the Met. Or, in other words, an exhibition featuring multiple garments, accessories and memorabilia, attracted only about 60,000 more visitors than one measly dress. Now that’s the power of Kate.