Best posts about this topicLoading . . .
A city is a large human settlement. Cities generally have extensive systems for housing, tranportation, sanitation, utilities, land use, and communication. Their density facilitates interaction between people, government organizations and businesses, sometimes benefiting different parties in the process.
No signin required
Sussle is the first, open visual encyclopedia. Anyone can use it.
It has beautiful images and viral videos that are way more fun than reading all the text in traditional encyclopedias.
Just click on the red module above.