At 2,722 feet, Dubai’s Burj Khalifa, the world’s tallest building, is almost 1.5 times the size of the finished 1WTC, at 1,776 feet (take that, freedom!). What’s it like inside? The latest installment of Google’s Trekker Street View project, which maps areas inaccessible to the company’s camera-equipped vans (check out the Grand Canyon here) goes inside, mapping highlights of the building’s facilities, from the world’s highest occupied floor (number 154) to the world’s highest observation deck. Take a look here; don’t get vertigo.

(Photo: Nepenthes/Wikimedia Commons)