OPW Heritage Ireland places in County Kildare

Ireland's first Palladian mansion, built 1722 for Speaker Conolly at Celbridge, seen by guided tour, with free parklands down to the Liffey; adult €10, free for English Heritage members, car park off the M4.

The ruined seat of the FitzGerald earls of Kildare at the end of Maynooth's Main Street, with a keep of about 1200, gatehouse and a free exhibition; free, open late April to late September only, picnic grounds, no toilets, street parking.

A well-preserved five-storey round tower on St Tua's eighth-century monastery, beside a turreted church of 1831, in a roadside graveyard south of Maynooth in north Kildare; free, open-air.