Discover the invisible inhabitants that populate our world - small, fascinating, and full of surprises. Bacteria are among the oldest and most diverse life forms on Earth. They live almost everywhere: in the air, in water, in soil, and also on and inside our bodies. Because bacteria are extremely small, they remain hidden from our eyes. Nevertheless, they perform central tasks: breaking down organic material (such as plant residues in compost), aiding in digestion, enabling the production of food, and playing an important role in research, medicine, and the environment. In this exhibition, you will learn about their amazing abilities and discover how they live together in complex communities. Bacteria rarely live alone. They exchange nutrients and chemical signals, cooperate, and collectively adapt to their environment. This close coexistence gives rise to complex structures - bacterial cities that resemble human metropolises in organization and division of labor. The exhibition is aimed at science enthusiasts aged 14 and older and is free of charge. Project participants: - Dresden University of Technology - Chair of General Microbiology - Chair of Multimedia Technology - Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH - studio.fragil - Sandro Berneis, Dresden - Helmholtz Center Dresden-Rossendorf