Malaysia has 65,877km of highway (as of January 2016), which happens to be 25,000km more than the Earth’s circumference. So, it’s no surprise Malaysia is also home to the world’s largest roundabout.
Persiaran Sultan Salahuddin Abdul Aziz Shah or Putrajaya Roundabout is 3.5km in diameter and houses iconic Putrajaya buildings including Putra Mosque.