A 130-ton ball of fat, baby wipes, and other congealed waste was a media sensation late last year when it was discovered blocking a sewage pipe in the East End of London. The “fatberg,” made up of condoms, tampons, wipes, and cooking oil, weighed as much as 11 double-decker buses. It took nine weeks to remove, and it became something of a cultural icon. Now pieces of it are now on display at the Museum of London—sealed in airtight cases, but still attracting flies and wafting its fetid aroma upon curious visitors. Watch the video above to see how people are reacting to the fatberg and its smell.