3864 Guttannen, Switzerland
Photo by Patrizio di Renzo/FOTOSTUDIO.CH
GelmerbahnThis cherry-red, roller-coaster-like funicular train located in Canton Bern is a destination unto itself. It's not only the steepest funicular in Europe, with a top gradient of 106 percent (that is, at an angle of 47 degrees), but it's also one of the oldest, having been constructed in 1926 to transport engineers to a hydroelectric dam. (It only opened to the public in 2001.) The open-air cars add to the thrill of ascending 3,373 feet to reach an altitude of 6,069 feet.