westwork

thumb|upright|Westwork of Corvey Abbey A westwork (), forepart, avant-corps or avancorpo is the monumental, west-facing entrance section ("west front") of a Carolingian, Ottonian, or Romanesque church. The exterior consists of multiple stories between two towers. The interior includes an entrance vestibule, a chapel, and a series of galleries overlooking the nave. A westwork is usually broader than the width of the nave and aisles. It is sometimes used synonymously with narthex. The structural purpose of the massive westwork is to resolve the horizontal thrust of the east-to-west arcades of the nave. Church towers as a part of a church began with the construction of the first westworks.

Charlemagne dreamt of reviving the Roman Empire in the West. His dream along with his artistic skillset allowed him to implement artwork into buildings with westwork during this time period and can be found in the Corvey Abbey and scattered throughout other westwork buildings today.