The blue city:Jodhpur

Jodhpur — known as the Blue City for the color of its buildings — is the second largest city in Rajasthan, the largest state of the Republic of India, standing at the edge of the large, inhospitable Great Indian Desert (Thar Desert), which has an edge paralleling the Sutlej-Indus river valley along its border with Pakistan.Most of the buildings in the old quarter are painted blue to signify the Bhraman (Priest) class, but non-Brahmins soon followed suit, as the color was said to deflect the heat and deter mosquitoes, and suddenly everything turned blue, creating a broad vision of indigo from the hilltops.