While we know it was built for Pharaoh Khufu, the precise methods used by the ancient Egyptians to construct the Great Pyramid of Giza, especially how they lifted the massive stones, are still debated. What is the most widely accepted theory for moving the stones to higher levels?
In 1908, a massive explosion flattened over 2,000 square kilometers of forest in Siberia, Russia, with no impact crater found. What is this mysterious event known as?
After the death of Edward IV in 1483, his two young sons, Edward V and Richard of Shrewsbury, were imprisoned in the Tower of London and subsequently vanished. What is this famous historical mystery concerning their disappearance called?
In 1518, the city of Strasbourg experienced a bizarre phenomenon where hundreds of people compulsively danced for days, some to their death. What is this historical medical mystery known as?
This mysterious 17th-century prisoner was held in various French prisons, including the Bastille, and always wore a mask, hiding his identity. Who was he known as?
This opulent chamber, constructed of amber panels, gold leaf, and mirrors, was gifted by Prussia to Russia in the 18th century, but disappeared during World War II. What was it called?
In 1918, this large collier ship of the U.S. Navy disappeared in the Bermuda Triangle region with all 306 crew members and passengers, leaving no trace. What was the ship's name?
This alleged 'ghost ship' is the subject of a persistent maritime legend, claiming its entire crew was found dead with expressions of terror, despite no apparent cause of death or damage to the vessel. What is the ship's name?
Despite extensive searches and archaeological digs, the final resting place of this last pharaoh of ancient Egypt and her Roman lover, Mark Antony, has never been definitively found. Who is this pharaoh?
The massive stone statues known as Moai on Easter Island are famous for their mysterious origins. One of the biggest unanswered questions is how the ancient Rapa Nui people transported these colossal figures across the island. What is Easter Island also known as?