The classification of Casco Viejo as an UNESCO world heritage site, often attributed to the general richness of colonial architecture, is in fact largely based upon a more recent and political piece of history. The Salón Bolívar was the site of the 1826 Congreso Anfictiónico organized by Simón Bolívar to discuss the unification of Colombia, Mexico, and Central America into a single political entity. Bolívar himself was not able to attend, but the meeting of Latin American leaders was a critical formative event. The Salón is now entirely enclosed by glass for protection inside the 1920s-era Palacio Bolívar, which significantly also houses the offices of the Panamanian Ministry of Foreign Relations. Visitors can view the beautiful tiled courtyard inside the completely restored structure. Call ahead for details regarding timings.