The Burj Dubai

Now that's one hell of an occupational hazard:

The Burj Dubai is so tall that Bedouins can see it from their oases 100 kilometers (63 miles) inland and sailors can see it from their supertankers, 50 nautical miles out in the Gulf -- at least on the few winter days when the air is as clear as it's portrayed on the mural in front of the model apartment window.

The tower is so enormous that the air temperature at the top is up to 8 degrees Celsius (14 degrees Fahrenheit) lower than at the base. If anyone ever hit upon the idea of opening a door at the top and a door at the bottom, as well as the airlocks in between, a storm would rush through the air-conditioned building that would destroy most everything in its wake, except perhaps the heavy marble tiles in the luxury apartments. The phenomenon is called the "chimney effect."