supersized buildings

I was watching the Discovery Channel on Cleopatra or something relating to Egypt and it came across the giant light house at Alexandria. It was supposed to be 380-490 feet tall, a feat of engineering, and a sign of wealth and power. We may consider this ancient, but people are still trying to build large structures and buildings today. I mean look at the Petronas Towers in Malaysia, the Taipei 101, or the Sears Tower. All these buildings are a testament to the engineering power and financial wealth and political power these countries have. But this is something that can be traced thousands of years back in time. That's what the pyramids of Egypt are, the Mayan pyramids at Chichen Itza, or Tenochitlan, or the large mounds of Cahokia and throughout North America. We've been building to best each other, to display the magnificance of our society. I just think it's interesting (and I chuckle) to see that this tradition of building increasingly larger and taller structures continues today.