27 of the World's Most Beautiful Destinations

Lucerne, Switzerland

CREDIT: SHAN.SHIHAN/GETTY IMAGES
Picture a serene alpine lake fringed with soaring Alps. Now add in a walkable medieval old town and you've got the setting for this long-popular Swiss destination. Don't miss the Mt. Pilatus (via a nerve-racking aerial tramway) and the Rigi for nature trails and a famous viewpoint overlooking three lakes.