The apartment building at Entre RÃos 480 was where Ernesto Guevara Lynch and Celia de la Serna lived in 1928 after the birth of their son, Ernesto Guevara de la Serna, popularly known as 'Che.' According to biographer Jon Anderson, young Ernesto's birth certificate was falsified (he was born more than a month before the official date of June 14), but this was certainly Che's first home, although briefly. It's now a private flat, so you can't go inside.