Sky Scraper.
skyscraper.
Building as in the action: constructing Building as in the noun: construction, architecture
tall
Edifice
edifice
Sears Tower, but it may be a different name
The Burj Khalifa is the tallest building in the world. It is 2716 feet tall.
smokestacks
saguaro
phineas and ferb
Gross Building Area
Building block