Frequently Asked Questions

According to the Council on Tall Buildings and Urban Habitat (CTBUH), a "supertall" is a building 300 meters (984 feet) or taller. A "megatall" is 600 meters (1,968 feet) or taller.

It is normal for a megatall to sway 1 to 2 meters at the very top during high winds. The structures are designed to be flexible to absorb wind energy rather than rigid and brittle.

Rapid vertical ascent decreases air pressure quickly, causing a differential across your eardrum. Modern supertalls actively pressurize elevator cabs to mitigate this.

Not always. In places like Dubai, solid bedrock is too deep. Engineers use "friction piles" that grip the dense sand and gravel to hold the building up.

They use ultra-high-pressure concrete pumps connected to a continuous vertical pipe. Pumping to extreme heights requires specialized concrete mixes that won't separate under intense pressure.