I've got two days spare in Rio following a business trip. Should I spend my time in the city, head off to see the Iguazu Falls...or something different?
If during your business trip you don't have time to get to know the city, I would recommend staying these two days in Rio and just enjoy this marvelous city. I would suggest take a day trip to see the main sights all in one day, to avoid having to go through all the fuss of looking for the right transports etc, since all of them are a bit distant from each other. You have plenty of tours that see Cristo Redentor, Pão de Açucar, Lapa, etc all in one day. Then you still have one day to go to the Botanical Garden and enjoy Copacabana and Ipanema beach for example.