Lord Buddha advice on contemplation of man-made things

Hundred years ago there were many natural beautiful things to observe and it was also easy to cultivate happiness. But in today's city life, we are surrounded by long buildings, roads, and traffics. We rarely spend our time with nature and are mostly surrounded by man-made things. Although breathing meditation can be done anywhere and this cultivates a lot of relief from our suffering, I was just wondering whether Lord Buddha had given any suggestion on the contemplation of manmade things to cultivate happiness/peace? Is it possible to become peaceful by just contemplating on any man-made things and if yes then how?