The world is facing many environmental challenges and ongoing crises that strongly affect the urban, cultural, social, and economic aspects of our life. These challenges gradually develop into major environmental problems, such as climate change and water scarcity in many countries around the world. Constructed wetlands are one of the environmental solutions that are used in many countries to achieve some sustainable goals like water management, storm and flood water control, improved water and air quality, and increased biodiversity and habitats. In addition to being of low cost and easy to operate, constructed wetlands are considered a practical alternative to traditional treatment systems. Constructed wetlands represent a natural ecosystem for water treatment, or in other words they are an artificial simulation of natural wetlands that effectively bring many economic and ecological benefits. While many countries have a history of successful and integrated experiences in this field, this research aims at shedding the light over the use of constructed wetlands as multi-purpose gardens, and it discusses these international experiences. The research also recommends conducting further studies in the field of constructed wetlands and using them as a multifunctional tool in Egypt.