Here's why you should plan a trip to Liechtenstein, and what to do once you're there.Credit: jikgoe / Getty ImagesDon't miss your chance to ski or hike in Malbun, the country's coolest mountain town.Make a reservation at the celebrated Marée restaurant, which offers a delicious taste of Liechtenstein cuisine.Get a view of royal life by checking out the Vaduz Castle, the official residence of the Prince of Liechtenstein.Go for a tour and tasting …