The Museo de Arte Latinoamericano de Buenos Aires (MALBA)
A bit out of the way, but worth the trip is the Museo de Arte Latinoamericano de Buenos Aires (MALBA) in the barrio of Castelar. It showcases works by some of the best Latin American artists around and is a beautiful building in itself. There is an attached library, gift shop and café.
It is open Thursday to Monday 12:00pm to 8:00pm, and Wednesday 12:00pm to 9:00pm. General admission is $18.
Telephone: +54 (11) 4808-6500
Website: http://www.malba.org.ar/web/home_eng.html