Ключевые слова: alte burg, april, architecture, badenwuerttemberg, beauty, building, castle, city, cultural, culture, europe, frame house, germany, halftimbered house, historic, historic center, historic centre, holiday, house, lake constance, landmark, medieval, mersburg castle, middle age, old, old castle, pictorial, picturesque, romantic, sight, spring, studwork, studwork house, timber, timbered, timbered house, tourism, tourist, town, travel, vacation, village, wood, wooden,