This central square is literally where Lima began. The city's founding cornerstone, Plaza Mayor (also known as Plaza de Armas) is filled with architectural gems and history. It’s home to Baroque-style Palacio del Gobierno (Government Palace), also known as House of Pizarro, the sunflower-yellow, neo-colonial Municipal Palace, the colonial cathedral, and next door, the Archbishop’s Palace. Head to the Palacio del Gobierno at midday to catch the changing of the guard, a regimented yet fun daily show accompanied by tooting trumpets and impeccable goose-stepping. Located in the historical center, the square is an ideal starting point for exploring the rest of the neighborhood.