Precise characterization of a corridor-shaped structure in Khufu’s Pyramid by observation of cosmic-ray muons
https://www.nature.com/articles/s41467-023-36351-0
a Subterranean chamber,
b queen’s chamber,
c grand gallery,
d king’s chamber,
e descending corridor,
f ascending corridor,
g al-Ma’mun corridor,
h north face Chevron area,
i ScanPyramids Big Void with horizontal hypothesis (red hatching) and inclined hypothesis (green hatching) as published in November 2017.
All these images were obtained from a 3D modelization using dedicated laser surveys and photogrammetry data.
Much more at original source.