<span style="color: #222222;">The historical fort cities of Gwalior and Orchha in Madhya Pradesh have been named in the list of World Heritage Cities by UNESCO. </span><br />'' <br />'' <span style="color: #222222;">NITI Aayog Vice Chairman Rajiv Kumar said in a tweet that 'Orchha' means 'hidden palace', and true to its name, this majestic city is one of the hidden treasures of the country. He said, Orchha was the capital of the Bundela kingdom in the 16th century.</span>