St Mary's Church, Mountjoy Street, Dublin (John Semple) - Buildings of Ireland

Architect: John Semple
No Interior Access

Now converted into offices, this was Sir John Betjeman's favourite church in Dublin. Known locally as the Black Church, legend has it that if you run around it three times in an anti-clockwise dirtection at midnight, it will summon the devil. The interior is unique in that it has neither walls nor ceiling but a parabolic arch which creates the interior space.