Reinforced concrete was the material of choice for many architects of the modern era, exploiting the material in a multitude of creative and innovative ways. Many of the most extraordinary structures of the modern era demonstrate the potential of reinforced concrete and illustrate the rapid evolution of the material throughout the 20th century. It is the most used material in the construction industry due to its high resistance and its ease of molding when it is prepared, it also contains steel in the form of rod and wire, with a useful life of its components, built as a system, for more of one hundred years as long as they are well designed, well built and above all they are given adequate maintenance. However, the durability of concrete structures depends on several main environmental factors, the quality of the raw material and its maintenance. Some of the studies and research projects on the subject of Concrete focus on the historiography of reinforced concrete in Colombia, where some authors highlight aspects of construction processes, technical innovations, construction companies, and architecture and engineering projects that were pioneers in the 20th century. In Colombia, a historical context of this material and the most representative projects in the city of Bogotá, Colombia are detailed below.