People on the upper floors of the Burj Khalifa, the world's tallest building, perceive time differently than do those on lower levels.

In a new book called "Supertall," architect Stefan Al explored the world of skyscrapers and how they affect the way we live, including the impact the world's tallest building has on its inhabitants.

At 830meters tall, the Burj Khalifa is twice the height of New York's Empire State Building. It far exceeds the scale of anything that's been built on Earth, Al wrote.

"I remember first going there, and I had this old camera phone — I couldn't even fit it in one single shot. I thought that's so bizarre that you can't even fit a building in your camera lens," Al told Insider.

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From the top of the Burj, people can view so far into the Arabian Desert that they seethe sun set several minutes after people on the ground see it set, per Al's book. It's had implications for the Muslim population in the building: As a result of the perceived time difference, those living on the higher floors of the Burj need to wait a few extra minutes before breaking their fast at sunset.

"Dubai clerics decided that the residents above the 80th floor should wait an additional two minutes to end their Ramadan fasting. And those above the 150th should wait an additional three," Al wrote in his book.