Visiting Asuncion, Paraguay is a good stop on a Latin America trip.
It is one of the lesser traveled capitals in Latin America, so you can enjoy a less touristed, more authentic visit.
Getting to Asuncion (airport code ASU) is pretty easy.
Many major carriers fly directly there from the Latin American hubs.
For example, American Airlines (AA) via Sao Paulo, LanChile via Santiago, and Delta through Buenos Aires.
Fares tend to be pricey though due to the lower volume of travelers heading there.