This is an alley found in Shinjuku, Tokyo, Japan called 'Omoide Yokocho' which means memory lane. It is one of the most popular spots for photographers to visit, the white flowers along the sides offer a really beautiful aesthetic in combination with the lanterns hanging overhead.
It is a place where many people head after work for some food and drinks. Tourists especially love visiting this area since it is very reminiscent of the past - hence memory lane.
In my opinion, one of the must-visit locations of Tokyo, as well as providing a very beautiful scene to explore. The alleyways are cramped but there are plenty of different shops and lots of food to try out.