Plas Mawr

Purchased in 1576 by one of the first Welshmen to live in Conwy – Robert Wynn, merchant and diplomat in the royal courts of Europe – Plas Mawr is arguably Britain's finest surviving Elizabethan town house. The discreet whitewashed exterior hides the vivid interior, with its colourful friezes, heraldic devices bearing the initials of the owner, and superb plasterwork that emphasises the noble Wynn dynasty and the owner's descent from the Princess of Gwynedd. An exhibition on 16th-century hygiene will raise eyebrows.