The correct answer is: The Red Fort.
The Red Fort is a historical fort in the city of Delhi, India. It was built by the Mughal emperor Shah Jahan in the 17th century as his residence and capital. The fort is made of red sandstone and is one of the most popular tourist attractions in Delhi. It is also a UNESCO World Heritage Site.
The Red Fort is called “a dream in stone” because of its beautiful architecture and its intricate design. The fort is made up of a series of buildings and courtyards, all of which are decorated with intricate carvings and paintings. The Red Fort is a masterpiece of Mughal architecture and is one of the most impressive buildings in India.
The other options are incorrect because they are not called “a dream in stone”. The Rang Mahal is a palace in the Red Fort. The Panch Mahal is a pavilion in the Red Fort. The Bahai temple is a temple in New Delhi.