Off to the left (north) of the first court of the Amun Temple Enclosure is Karnak’s open-air museum. The word 'museum' and the fact that there is so much else to see in Karnak means that most visitors skip this collection of stones, statues and shrines, but it is definitely worth a look.
The well-preserved chapels include the White Chapel of Sesostris I, one of the oldest and most beautiful monuments in Karnak, which has wonderful Middle Kingdom reliefs; the Red Chapel of Hatshepsut, its red quartzite blocks reassembled in 2000; and the Alabaster Chapel of Amenhotep I. The museum also contains a collection of statuary found throughout the temple complex. Buy the combo ticket at the main ticket office.