St Mary Undercroft, Chapel in the United Kingdom
St Mary Undercroft is a stunning chapel with elaborate vaulted ceilings.
Originally built for King Edward I in the 1290s, the chapel epitomizes Gothic architecture.
The chapel has served as a place of worship for the parliamentary community.
Located beneath St Stephen's Hall in the Palace of Westminster.
It is a royal chapel that hosts a weekly parliamentary service.
Source: Wikimedia