Tokyo is the capital of Japan and one of the major global cities of the world. The divergence in architectural styles shows just how far Tokyo has come from being a traditional Japanese village to becoming one of the major power centers of the world both politically and economically. Traditional ryokans and buildings such as the Imperial Palace and other temples are flanked by ultra-modern glass and steel towers that dot the skyline of the city. Tokyo has a huge subway and rail system making the city one of the busiest in the world. Construction projects are a constant in this city; restaurants, shopping complexes and other estates are flourishing.