a Potemkin village
Something that is made to seem very grand, elaborate, and/or prosperous for the purposes of impressing others, but which in reality has no real worth or substance. Taken from a story about Russian minister Grigory Potemkin (1739–1791), who allegedly erected false, painted façades to mimic a thriving, successful village along the Dnieper River in Crimea to impress the visiting Empress Catherine II. The tightly controlled totalitarian country is often accused of creating a Potemkin village each time it televises some event, a meager attempt to convince the outside world that its people are happy under the thumb of the dictatorship.
a Potemkin villagea sham or unreal thing.
Count Potemkin ( 1739–91 ), a favourite of Empress Catherine II of Russia, reputedly ordered a number of fake villages to be built for the empress's tour of the Crimea in 1787 .