The quest at the exhibition about the construction of Yekaterinburg's metro turns children and adults into underground explorers. Instead of a boring tour - tasks, puzzles, and a journey from the first projects to the driver's cabin, where each step helps to assemble your version of the story of how trains appeared underground and imagine what they will be like tomorrow. Imagine that the familiar urban metro suddenly turns into a big mystery, and the museum halls become the route of a real adventure. This is how the interactive program for the exhibition about how the metro was born in the city is arranged: from the first bold ideas and controversial drawings to the launch of trains that today seem completely natural. Participants do not just pass by the displays: they are constantly searching, solving, comparing, pressing, and flipping, gradually piecing together the overall picture of a massive construction project underground. The route is designed so that children do not get bored, and adults are truly curious. The tasks help to see familiar transport from an unexpected angle: here you can "ride" in the driver's cabin, understand what tunnel builders live for, learn what the turnstile looked like in past decades, and why the first metro projects differed significantly from what eventually appeared in the city. At each stage, there is a mini-puzzle: somewhere you need to match diagrams, somewhere to find a key, and somewhere to guess what decision an engineer might have made many years ago. Where to go in Yekaterinburg, KudaGo knows.