"main sites" is a correct and commonly used phrase in written English.
It usually appears in the form of a noun phrase, such as "The research focused on the main sites of the city."
Address: Two main sites near Wrexham.
Many universities have secondary campuses miles from their main sites.
Mr. Wilder considered three main sites in Virginia: Jamestown, Richmond and Hampton.
Go to nicetourisme.com for more information The Popes' Palace is one of Avignon's main sites.
The main sites can be reached on foot or a free bus.
In addition to the main sites, these can be found spread right across Venice.
Teaching is arranged across five main sites in Bangor, Llangefni, Parc Menai, Caernarvon and Holyhead.
The size and usefulness of the three main sites becomes apparent when comparison shopping.
Library facilities are divided between the two main sites in Nuneaton and Hinckley.
Most of the Scottish capital's main sites are within walking distance.
Its main sites suffered disabling "denial of service" attacks, commonly used by cybercriminals and terrorists.
