In monetary terms, art collectors like Eli Broad and his bevy of museums seem like fairly small fish when compared to Carlos Slim, the world’s wealthiest person. This week, Slim kicked off his first major foray into the museum building business with a pre-launch celebration of the Soumaya Museum, located in Mexico City. Unlike some of our billionaires (he’s estimated to be worth somewhere between $50 billion and $70 billion), the multi-industry magnate got very hands-on with the museum, from naming it after his late wife, to using his art collection to fill its six floors, to even hiring his son, a one-time Rem Koolhaas apprentice, as the building’s architect. Reuters reports that the inaugural party was hosted by Larry King and featured “some 1,500 guests ranging from Mexico’s president to Nobel Prize winning author Gabriel Garcia Marquez.” So even if you went and didn’t like the art, at least it was sure to be good people watching that night. The museum is set to officially open to the public on March 28th. We can’t wait to see inside, as the building itself looks mighty impressive (you’ll find a rendering below). However, we’re hoping by then that Slim spends a little chunk of his billions to build a proper website for it, as that frame-based layout just isn’t going to cut it.