Why are airport ceiling so high?

Question

Why can’t airports just be standard or double maybe triple height, why do they have to be so big?

In: 784

Answer 1

Clearly you haven’t been to Washington Dulles C terminal. [https://commons.wikimedia.org/wiki/File:Inside_Concourse_C.jpg](https://commons.wikimedia.org/wiki/File:Inside_Concourse_C.jpg)

Granted the main terminal has a huge soaring roofline, but the C building is the opposite with lower normal height ceilings.