Ключевые слова: 20 to 24 years old, 25 years old to 29 years old, a landmark building, accompanied, adults, adults only, alpenstock, ancient architecture, asia, asian, asians, backpacking, be light of heart from care, beauty, beijing, camera, carrying through the object to see, china, chinese, color pictures, comfort, companion, daylight, east asia, energy, fashion, finger, half length, hand, happiness, health, helmet, holiday, honor, horizontal format, interpersonal relationship, leisure, look at camera, love, lovely, moistureproof pad, mountaineering bags, mountaineering helmet, natural, next to, outdoor, red, sky, smile, stop, the front view, the great wall, the local famous attractions, the mountain city, the mountains, the world cultural heritage, tourism, trees, two people, vigor, wall, way of life, women, yellow, young people, young women,