Revivalism (architecture)
Architectural revivalism is the use of elements that echo the style of a previous architectural era that have or had fallen into disuse or abeyance between their heyday and period of revival. Revivalism, in a narrower sense, refers to the period of and movement within Western architectural history during which a succession of antecedent and reminiscent styles were taken to by architects, roughly from the mid-18th century, and which was itself succeeded by Modernism around the late 19th and early 20th centuries.
Source: Wikipedia — Revivalism (architecture) (CC BY-SA 4.0)