Preservation institutions are organizations dedicated to safeguarding cultural, historical, and natural heritage. They include museums, archives, libraries, and conservation centers that work to protect artifacts, documents, and ecosystems. These institutions often engage in research, education, and public outreach to promote awareness and appreciation of heritage. These organizations employ various methods to preserve items, such as climate control, restoration techniques, and digital archiving. Notable examples of preservation institutions include the Library of Congress, the Smithsonian Institution, and the National Archives. Their efforts ensure that future generations can access and learn from the past.