#4 The Crew Aboard Mary Celeste
On the 4th of December 1872, an abandoned Mary Celeste was discovered off the Azores Islands by a Canadian ship called Del Gratia. Mary Celeste was in good condition, but her lifeboat, the captain’s navigation gear, the ship documents, and the entire crew was missing.
What’s surprising is that everything else, including the crew’s personal belongings, were intact. Mary Celeste left the United States with ten people, including the captain, his wife, and his daughter. None of them have been found to date.