As priceless as it is pricey: reserve your peeps a spot aboard this VA-based company's overhauled 727 when it cruises into town this spring. Passengers'll experience weightlessness as G-FORCE ONE flies a parabola specially designed to simulate lunar and Martian gravity (1/6 and 1/3 respectively), then pitches at a 45 degree angle, providing 20-30 seconds of free fall (12-15 times per flight) and ensuring that your loved ones "feel the pull of 1.8 Gs"...and that your Chase account will feel the pull of considerably more.