cites / sights / sites are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
cites: NA
sights: (noun) an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument.
sites: (noun) the piece of land on which something is located (or is to be located). (noun) physical position in relation to the surroundings.
cites: s·AY·t·s
sights: s·AY·t·s
sites: s·AY·t·s
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)