What is the oldest cave in Egypt?
What is the oldest cave in Egypt? Wadi Sannur Cave in Beni Suef The Wadi Sannur cave is considered to be one of the oldest in the world, formed by chemical reactions of underground water and its mixing with limestone since the Eocene era 40 million years ago.
How long will the pyramids last?
Many people have said that the pyramids would last 1 million years or even until the world ended, but I'd say around 10,000 to 100,000 years based on current observations.
What is the deepest cave in the world?
Veryovkina Cave (also spelled Verëvkina Cave, Abkhaz: ????????? ?????, Georgian: ??????????? ??????, romanized: veriovk'inis mghvime) is a cave in Abkhazia, an occupied region of Georgia. At 2,223 meters (7,257 ft) deep, it is the deepest-known cave on Earth.