Over 100 m long tomb of pharaoh Seti I was discovered in October 1817 by Giovanni Belzoni. The tomb of Seti I represents the fullest development of royal tomb in New Kingdom. It is also the longest, deepest and most completely finished of all the tombs in the valley.  It is thoroughly covered with numerous decorations. In the funerary chamber Belzoni was found anthropoid calcite sarcophagus and fragment of canopic chest, now in the Soane Museum in London. Under dynasty XXI the tomb of Seti served for short time as a cache for mummies of Ramesses I and II. In year 10 of Siamon rule these mummies, together with that of Seti, were moved to the Deir el-Bahari cache DB320.

A - entrance steps with passage
B - 1st corridor (scenes from the Litany of Re and the king before Re-Horakhty)
C - steps (scenes from the Amduat and Litany of Re)
D - 2nd corridor (scenes from the Amduat)
E - deep well shaft (scenes of the king before various deities)
F - four-pillared hall (decorated with Osiris shrine and scenes from the Book of Gates)
G - lower passage ('opening of the mouth' ceremony)
H - two-pillared side room (scenes from the Amduat; pillars show the king before various deities)
I - antechamber (scenes of the king before various deities)
J - southern chamber
K - northern chamber
L - 6-pillared burial chamber (Book of Gates, the Amduat and the Book of the Divine Cow; images of the king before various deities)
M - chamber for canopic jars (?)
N - crypt (scenes from the Amduat; astronomical ceiling)
O - north-west side chamber
P - 4-pillars chamber