Meeting place of the House of Commons (elected, 650 MPs) and House of Lords (appointed/hereditary). Commons holds government to account, passes laws, controls finance.
Embodies the Westminster system exported globally. Continuous legislative history since 13th century (Model Parliament 1295).
Gothic Revival palace by Charles Barry & A.W.N. Pugin (1840–1870) after 1834 fire. Iconic Elizabeth Tower ("Big Ben"), Victoria Tower, Central Lobby, ornate interiors.
PM's Questions, major debates, state openings, addresses by foreign leaders. Hub of national decision-making.
Visitors can watch debates, tour historic rooms, attend committee hearings. Embodies open government.
Model for dozens of parliaments worldwide (Canada, India, Australia, Caribbean, etc.).
Houses priceless artifacts: original Magna Carta (1297), historic manuscripts, art, sculpture.
Together, they represent the continuity of British constitutional governance and its worldwide legacy.