This page is long. But not it's not the longest building in the world. That would be the Burj Khalifa in Dubai.
(Nor is it as long as the number of digits in Euler's Number!)
Yep. The Burj Khalifa. Longest building.
Or is it the Tower of Babel?
Trivia
- The Burj Khalifa was named after Sheikh Khalifa bin Zayed Al Nahyan, the late president of the United Arab Emirates and the ruler of Abu Dhabi.