সাড়ে ছয় হাজার কিলোমিটারব্যাপী বিস্তৃত চীনের এ মহাপ্রাচীরটি বিশ্বের মানবসৃষ্ট অন্যতম বড় নিদর্শন। এটি পৃথিবীর একমাত্র স্থাপনা যা চাঁদ থেকে দেখা যায়। খ্রিস্টের জন্মের আগে থেকে উত্তরের মঙ্গল আক্রমণ থেকে বাঁচার জন্য চীনের সম্রাটরা এটি নির্মাণ শুরু করে। ২২০-২০৬ খ্রিস্টপূর্বে সবচেয়ে উল্লেখযোগ্য দেয়ালগুলো নির্মাণ করা হয়। পূর্বে ডাংডং থেকে শুরু করে পশ্চিমে লপ লেক পর্যন্ত ৬৪০০ কিমি. দীর্ঘ এ দেয়ালটির বিস্তৃতি।
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আমাদের অল-ইন-ওয়ান মোবাইল অ্যাপের মাধ্যমে সীমাহীন শেখার সুযোগ উপভোগ করুন।
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