The aim of this thesis is to help provide safety in third world countries with the use of shelters. Due to the current global political climate of crisis, the need for shelter, or safety is a growing concern for a large number of people. Rather than focusing on the issue of sheltering those who are displaced during a time of crisis, this thesis looks at the critical need for shelter for people who stay behind in urban centers. This choice led to researching bomb shelters, which are temporary dwellings used in times of extreme duress. This thesis examines the possibility of channeling multiple existing underground subway systems in Tehran to create an alternative underground metropolis for times of crisis, which can help the individuals who choose to stay in the city during a time of crisis, due to complications, or necessity.