At this card you can see Buenos Aires at night .... You can see the 'Obelisco' and the Av. Nueve de Julio.
How I'd love to visit Argentina once...and not because our princess Maxima is Argentinan ;-)
Thanks Laura who sent me this card through postcrossing.com

Buenos Aires is the capital and largest city of Argentina and it's the second-largest metropolitan area in South America after Sao Paulo.
Avenue Nueve de Julio is one of the widest avenues in the world; its name honors Argentina's Independence Day.
El Obelisco was built in 1936 to commemorate the 400th anniversary of the first founding of the city. El Obelisco is one of the main icons of the city, and a venue for various cultural activities (usually sponsored by the city government) and other events. It is the traditional gathering spot for sports fans to celebrate when their favourite team win. (Wikipedia).