Many coountries around the world have three tourism related destinations located in a triangle shape such as Thiland, China, India etc. As far as the Golden Triangle of India is concerned, it includes the 3 most visited destinations in Northern India - Delhi, Agra and Jaipur. Along with these 3 cities, you can include the sightseeing of Varanasi, Khajuraho,Udaipur, Rajasthan etc in Go... https://tajwithguide.com/golden-triangle-tour.html