Những bậc thang độc đáo trên thế giới
1. Bueren Mountain, Belgium
2. Stairs Above the Sea, Spain
3. Spiral Staircase in Taihang Mountains, China (bỏ)
4. Awaji Hyakudanen, Japan
1. Bueren Mountain, Belgium
2. Stairs Above the Sea, Spain
3. Spiral Staircase in Taihang Mountains, China (bỏ)
4. Awaji Hyakudanen, Japan
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