At the time of research, this museum was closed but may reopen soon; check iPerú for updates. In a brutalist concrete tower, it provides a cursory overview of Peru’s civilizations, from Chavín stone carvings and the knotted-rope quipus (used for record-keeping) of the Incas to colonial artifacts. One must-see is the permanent exhibit Yuyanapaq. Quechua for ‘to remember,’ it's a moving photographic tribute to the Internal Conflict (1980–2000) created by Peru’s Truth & Reconciliation Commission in 2003.
From San Isidro, you can catch one of the many buses or combis (minivans) heading east along Av Javier Prado Este toward La Molina.