Tri-a-Hanner is a historic house museum located in Kilmacolm, Renfrewshire, Scotland. The 18th-century mansion features stunning Georgian architecture, beautifully landscaped gardens, and an impressive art collection. The interior boasts exquisite decorative plasterwork, intricate wood carvings, and ornate furnishings, showcasing the opulence of the era. Visitors can explore the state rooms, including the grand saloon, dining room, and library, which offer a glimpse into the lives of the wealthy Hanningfield family who once resided there.