India, Oct. 15 -- As the weather cools down, with the mild winter chill in North India and pleasantly sunny days across the rest of the country, it's the perfect time to explore India's historical treasures.

If you live in the Delhi NCR region, you're likely familiar with heritage walks at Lodhi Gardens, Humayun's Tomb and the Red Fort. However, there are numerous other Mughal-era and even Sultanate-era monuments across North India that remain lesser-known but equally fascinating. Many of these sites are under ASI surveillance, making them safe for independent visits, while others are best explored in a group for guidance and security.

These hidden gems offer a unique glimpse into India's rich architectural and cultural legacy, far from...