Visit Casco Viejo, Panama City's historic district that dates back to the 17th century. This UNESCO World Heritage Site features a mix of architectural styles reflecting the city's colonial past, with cobblestone streets, colorful buildings, and stunning plazas. Notable landmarks include the Cathedral Basilica of Santa María la Antigua, Iglesia de San José, and the Presidential Palace. Casco Viejo is perfect for a leisurely stroll, as you soak in the history and culture of the area.