Dassault Falcon 7X

Price: $50 million

Available: Since 2007

Range: 5,950 nautical miles

The Dassault Falcon 7X isn't the biggest, fastest, or priciest jet a billionaire can buy. But it's easily the coolest: Its triple cluster of jet engines makes it one of just two trijet models in the air (Dassault also makes the other), and it's huge, with a stand-up cabin and bathroom and seating for up to 16 passengers. The 7X's landing speed, though, is as low as 104 knots, letting it set down on runways normally far too short for large-body jets. No other plane in its class, for example, can land at London City Airport. [dassaultfalcon.com]