Final answer:
San Salvador is the capital and largest city of El Salvador, which features significant sites like the Metropolitan Cathedral of the Holy Savior and Estadio Cuscatlán.
Step-by-step explanation:
The capital and largest city of El Salvador, which is situated in the Boqueron Volcano Valley and bordered by the Balsam Mountain Range, is San Salvador. El Salvador is the smallest and the most densely populated country in Central America, known for its volcanic landscape.
Located in San Salvador are significant sites such as the Metropolitan Cathedral of the Holy Savior (Catedral Metropolitana de San Salvador) and Estadio Cuscatlán, indicating the city's historical and cultural importance despite the destruction of some Spanish Colonial structures due to earthquakes and other disasters.
Moreover, El Salvador shares its borders with Guatemala, Honduras, and the northern Pacific Ocean, and its official language is Spanish.