Scientists have discovered a massive empty space in one of the famous Pyramids of Giza in Egypt.
Special scanners have been able to show researchers that the stone structure is not as dense in a certain area of the pyramid.
They believe that the empty space the scanners have located is big enough to fit a 200-seat passenger plane inside!
Now the plan is to find out what is inside this space.
What is the Great Pyramid?
Khufu’s Pyramid, also known as the Great Pyramid, is the largest of the three Pyramids of Giza. It stands at 140 metres tall.
It was built more than 4000 years ago for the Pharaoh Khufu.
Pharaohs were expected to become gods in the afterlife. These pyramids were filled with lots of things that people thought would help pharaohs in the next world.
What’s inside the space?
One French scientist, Jean-Baptiste Mouret, has suggested that they might drill a very small hole in the side of the pyramid that leads into the space.
They would then send a tiny robot down the hole to look inside!