The capital of Venezuela is Caracas. It is the largest city and the primary center of industry, commerce, education, and culture in the country. Caracas was founded in 1567 and serves as the seat of government for the Capital District, although the city extends into the neighboring state of Miranda as well

. The other cities mentioned in your query are capitals of different countries in South America:

• Buenos Aires is the capital of Argentina.
• La Paz is the seat of government of Bolivia.
• Lima is the capital of Peru.