Cotterell

Cotterell is a free UK based map which allows you to serve the university and the town centre. Very fun and easy to learn!
How to extract

This download is in
.ZIP format. You can extract this file using a tool such as
PeaZip.
Alternatively, you can use
WinZip,
WinRar,
7-Zip or some other software that supports the .ZIP extension.