The Largest Hourglass in the World Only Needs To Be Reset Every New Year’s Eve

Budapest’s Timewheel is the world’s largest hourglass, taking an entire year to drain completely. Instead of sand, tiny pieces of glass trickle through the clock with the help of a computerized system that keeps the timing perfect. Built in 2004 to commemorate Hungary’s inclusion into the European Union, the giant wheel only needs to be reset once a year. Every December 31st, a team of four people use thick steel cables to rotate the Timewheel 180 degrees on its built-in rails, resetting the chronological monstrosity for another year. Even with multiple helpers, the process takes up to 45 minutes to complete the half-rotation. The installation is located in a public park where visitors can come by and try to spin the gigantic granite wheel for themselves.