Helium-filled Zeppelins have always been a great way to travel; you can cruise at slow speeds and low altitudes in a quiet, comfortable atmosphere, and they're energy-efficient to boot. The much-ballyhooed Hindenburg disaster in 1937 gave them a bad name, but that tragedy was solely due to a fatal decision to use flammable hydrogen in place of helium, which was unobtainable at the time. In any case, the technology used in newly-designed dirigibles has come a long way. They're smaller than the behemoths of yore, more maneuverable, and of course much modernized.
The Zeppelin NT touring ship launched this past weekend in Munich is as long as a Boeing 747, but only carries 12 passengers in its cabin at a time so you never feel cramped. Unlike a plane it has big picture windows, along with all the amenities. The Zeppelin cruises along at 1,000 ft., providing the perfect vantage point for viewing Germany's lovely landscape from the air. Various vacation packages are available, and there are plans to establish a similar service in other cities as well.
Gallery: Luxe Zeppelin