The Sub Marine Explorer was one of the world's first submarines, designed more than 130 years ago by a German engineer; his invention would ultimately kill him.

Examine the Bermuda Triangle layer by layer to discover what's beneath its 440,000 square miles of ocean; freak waves, magnetic anomalies, giant whirlpools and more have been blamed for mysterious disappearances in the area.

Take a look at our guts and learn why women and cooking vegetables, rather than men and hunting, enabled one of our greatest evolutionary leaps.

Follow the construction of Cunard's Queen Elizabeth, from the laying of the keel, to fitting out of sumptuous staterooms and recruitment of staff; this new generation of ocean-going liner is designed to double as a transatlantic express and cruise ship.

Examine the Bermuda Triangle layer by layer to discover what's beneath its 440,000 square miles of ocean; freak waves, magnetic anomalies, giant whirlpools and more have been blamed for mysterious disappearances in the area.