PTE ESSAY Urban sprawl has become a controversial issue nowadays. Although some people believe that vertical cities are a remedy for the problem, others support that architects should stick in the traditional way of construction. In my opinion, vertical rather than horizontal cities do not resolve the problem whereas many other issues may occur. This essay will discuss both sides of the argument, providing a reason why people should not alternate the traditional forms of cities. Nowadays, internal and external immigration has led to overcrowding. In some respects, that issue could be resolved whether the construction of cities change to vertical. According to different types of research, under particular circumstances, vertical buildings could offer ample space, resolving gradually this major problem. Therefore, vertical buildings might constitute an immediate solution for overcrowding. On the other hand, changing the basic policy, and formation, of the modern architecture, could provoke significant problems rather than resolve one. The main argument is that physics has certain rules such as gravity and, thus, any experimentation will eventually lead to collapses. For example, in case buildings double their capacity, that possibly would create issues regarding the stability of the construction. Therefore, it has been proven that a potential modification in the conception of building's construction entails important implications in its consistency. In conclusion, urban sprawl is a debatable issue which emerges. As this essay has argued, any change in the architecture of buildings would lead to unpredictable devastation.