Preoccupied with inevitable traffic jams, the many motorists using Dublin’s Pearse Street are unlikely to throw a glance at the old church on their right-hand side. This is St Mark’s, which dates from the early 18th century when a new parish was created separate from that of St Andrew’s. Building work began in 1729 but the church was only roofed 23 years later. The architect responsible is unknown, but in any case the building is notable primarily for its want of external ornamentation, with sturdy limestone rubble walls. The entrance at the west end has a substantial cut-granite door with a smaller Diocletian window above: the arrow slits on either side, now blocked, once held glass to admit light to the interior spaces. The sides of the building have five tall and five short windows, one above the other and the east end has a Venetian window to light the chancel. Much altered in the 19th century, the interior retains its galleries supported by Corinthian columns. Unlike many other Church of Ireland churches in the city, St Mark’s is still in use, now by an evangelical Christian group for services.