In recent years, one of the most popular innovations that has accompanied the rapid changes in portable computers, Internet speed and personal digital assistants (PDAs) is augmented reality (AR). At the present, major investments concerning AR are being made, and it is predicted that there will be even further investment in the automotive, media/telecom, healthcare services, consumption and retail, industrial products, power tools, energy and mining, financial services, accommodation, and travel sectors within the next five years. AR is used in different sectors for various purposes such as service, manufacture, sales and marketing, design, operations, education, and quality and guidance. Researchers and educational technologists in particular have conducted different studies on the use of AR in educational environments. In studies implemented with participants who are receiving both K-12 and higher education, the integration of AR into the learning and teaching process has been investigated. The main object of interest is whether the use of AR as a new technology in educational environments will improve the current environments. Examining the literature concerning the use of AR in education, the majority of findings show that AR affects the learning process positively. In the findings, it is generally stressed that AR makes the learning process more interesting and efficient, provides the opportunity for interaction, increases the motivation toward and interest in the lesson, and affects attitudes toward learning positively. Even though the use of AR in educational environments has positive aspects, the study of AR is just beginning. Indeed, despite many advantages, it also has a number of disadvantages that need to be taken into consideration. Thus, there is an increasing number of experimental studies implemented in different disciplines and using different variables. In this study, an in-depth review was performed by addressing different aspects of the use of AR in educational environments.