Map multiple domains to subfolders in EC2

I have an ec2 instance running a LAMP stack. I plan on hosting some client mockups, static sites, etc. what i want to achieve is havethe sites in /var/www/sites/site1, /var/www/sites/site2 and so on. then mapping a url to each so it will end up like example.com mapping to /var/www/sites/site1. How can i achieve this?