If you bagged a windfall of staggering proportions, what would be your biggest splurge? For many, the answer is simple: a superyacht. The ultimate indulgence for the ultra-wealthy, the highest-end vessels represent the pinnacle of luxury. These floating palaces have purchase prices in the hundreds of millions of dollars – and annual running costs in the tens of millions too.

Ready to start your fantasy nautical shopping spree? Read on for the 20 most jaw-dropping superyachts available today and pick your favourite. All dollar amounts in US dollars.