Macao Peninsula is the historic heart of the Macao Special Administrative Region — a compact, walkable district joined to mainland China's Zhuhai by a narrow isthmus. Four centuries of overlapping Portuguese and Cantonese heritage are layered into just a few square kilometres, earning the Historic Centre of Macao its UNESCO World Heritage listing in 2005. At its centre, Senado Square's wave-patterned mosaic pavement leads past the Leal Senado Building and St. Dominic's Church up to the Ruins of St. Paul's façade — the peninsula's most photographed landmark. Nearby, Mount Fortress and the Macau Museum look out over red-shuttered Rua da Felicidade and the almond-cookie shops of Rua de São Paulo. South along the waterfront, the peninsula shifts character: the 500-year-old A-Ma Temple and quiet Lilau Square anchor the old Barra district, while the reclaimed NAPE waterfront brings Macau Tower's 360° skywalk, casino-hotels, and Macau Fisherman's Wharf. Guia Fortress and its 17th-century lighthouse — the highest point on the peninsula — cap the old town's northern hill.