We were sitting outside at La Fabrica Del Taco, a popular Palermo joint serving up cheap Tex-Mex style fare, when we noticed something strange about the restaurant next door. It had the appearance of a fancy, exclusive club, with red curtains obscuring the interior, but every couple who approached the door looked anxious and slightly furtive, like kids about to put their hands into a cookie jar. I went to investigate and, after reading the menu, understood the nervously excited behavior of the people going inside. Te Mataré Ramirez is an aphrodisiac restaurant. And its menu is among the best things I've ever read.
Tierra Santa, found in Palermo's Parque Norte next to the Newbery Airport, is a Jesus-themed fun park. Though, calling it "fun" might be stretching the truth a bit.
There are a few ways to experience tango while in Buenos Aires. Milongas are probably the most popular option, where people of all skill levels join in the dancing. And there are recitals with excellent music, usually no dancing, but possibly the most authentic. Or, you can choose the full-on tourist experience of the dinner show.