美国马里兰州老奶奶玛丽72岁开始环球冒险,90岁时足迹已遍布七大洲四大洋,游历了100多个国家。玛丽的老伴儿是个宅男,以前很少出门。老伴儿去世后她决定一个人好好看看这个美丽的世界。“每天早上起来就觉得生活如此充实。亲眼去看世界各处的历史古迹真是特别美妙的体验。” The United States, Maryland grandmother Mary 72 years old began a global adventure, 90-year-old footprint has spread across seven continents and four oceans, traveled more than 100 countries. Mary’s companion child is a otaku, rarely go out before. After her husband died, she decided to take a good look at this beautiful world. “Every morning you feel that life is so fulfilling, and seeing the monuments of the world with one’s own eyes is a particularly wonderful experience.” "