The capital of Armenia is Yerevan, but there are several synonyms that are sometimes used to refer to the city. One of these is Erevan, which is a variant spelling of the same name. Another synonym is Erivan, which was the traditional name of the city during its time under Russian control. Some people may also refer to Yerevan as the "Pink City" due to the prevalence of pink volcanic tuff used in many of its buildings. Finally, others may simply refer to the capital as "Yerevan City" or just "the City" as a shortened version of its full name.