Leinster House is the seat of the Oireachtas, which is the national parliament of Ireland. Located in Dublin, it serves as the meeting place for both the Dáil Éireann (House of Representatives) and the Seanad Éireann (Senate). The building was originally constructed in the 18th century as a townhouse for the Earl of Kildare. The architecture of Leinster House is neoclassical, featuring a grand facade and a distinctive dome. It has undergone several renovations and expansions over the years to accommodate the needs of the parliament. Today, it is an important symbol of Irish democracy and governance.