Ancient pyramids are some of the oldest and largest structures ever built. The earliest pyramids date back to around 4500 BC and were built in Egypt. Today, there are over 100 ancient pyramids still standing, many of which are in Egypt.
Some of the most famous ancient pyramids are the Great Pyramid of Giza, the Pyramid of Khufu, and the Pyramid of Cheops. The Great Pyramid of Giza is the largest and most famous of the ancient pyramids. It was built over 4,500 years ago and is still considered one of the most impressive and mysterious structures ever built.