Here's What It Looks Like to Climb the World's Tallest Building

If you've ever wanted to know what it's like to climb the world's tallest building without actually going through the adrenaline-pumping risk of doing so yourself, you can thank National Geographic photographer Joe McNally for taking cameras on his recent ascent.

The climb up Dubai's Burj Khalifa began after 5 a.m. local time. A service elevator was used to take the crew up to the last concrete floor of the 2,722-foot building. Then they climbed a bunch of metal steps, followed by a straight ladder up to the top.

Climbing the ladder to the top of the tower. (Image: YouTube screenshot)

"It is a lengthy climb and it's physically daunting," McNally said.

(Image: YouTube screenshot)

(Image: YouTube screenshot)

(Image: YouTube screenshot)

Check out the dizzying clip:

Although McNally was wearing a camera on himself, other shots were taken, compiled and edited by Drew Gurian.

(H/T: io9)

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