Hang Son Doong is the world’s largest cave. It has its own climate, river, and even cloud formations
Frankenstein Castle was the home of alchemist Johann Conrad Dippel, who was the inspiration for Mary Shelley’s gothic novel Frankenstein
The ancient Greeks had a drinking game called Kottabos
Anna Anderson – the woman who convinced the world she was Grand Duchess Anastasia of Russia
The most beautiful ancient clocks around the world
In 1898 Nikola Tesla tricked an entire crowd into believing they could control a boat by shouting commands – in fact he invented Radio Control and piloted the boat himself
With numerous phrases and hermetic symbols, Rome’s Mysterious Porta Alchemica represents one of the few existing alchemical monuments in the world …
A brief history of mobile phones and their evolution over the years
Victor Lustig – the man who sold the Eiffel Tower twice
The Jaquet-Droz Automata: mechanical wonders from the 18th century, considered by some to the ancestors of the modern computer
