Forget Saint-Jean-Cap-Ferrat in the French Riviera or Kauai island in Hawaii — the best kind of vacation home floats on the sea. At least, it may be for billionaires who already own other ...

Amazon founder and billionaire Jeff Bezos is set to wed his fiancée, Lauren Sanchez, this June in a lavish ceremony on his $500 million superyacht, Koru, off the coast of Venice, Italy.

The £200m boat is reportedly owned by New Zealand's wealthiest man, billionaire Graeme Hart, and boasts four exterior hot tubs, a winter garden, a swimming pool that covers the entire height of ...