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In St. Louis, there is one of the most unique museums in America. Its name is 'City Museum'.

Although it is called a museum, once you enter, it feels more like a giant playground made of structures.

From children to adults, everyone slides, climbs, and goes into holes. From the entrance, bizarre structures unfold before your eyes, dizzying you. Abandoned airplane fuselages, school buses, iron bridges, and old elevator shafts have all become materials for art.

The founder of this museum is Bob Cassilly, an artist and sculptor. He created this place in 1997, proclaiming it to be "the real museum of the city." Instead of artifacts in display cases, he collected discarded building materials, factory parts, old tiles, and even abandoned playground equipment, breathing new life into them. He wanted to gift people a museum that is not just for viewing, but for touching, climbing, and sliding.

The most famous area is the outdoor structure called 'MonstroCity'. It features steel bridges and slides hanging high in the sky, an airplane fuselage attached to a ten-story building wall, and complex passageways that intertwine like a maze.

Children, as well as adults, crawl through this structure, enjoying thrilling adventures. Another highlight is the giant slide that descends from the 10th floor to the 1st floor in one go. Made using the stairs and steel structure of an old factory, riding it brings a sense of liberation rather than just thrill.

Entering the museum is even more astonishing. There are tunnels made from car bumpers, ceilings decorated with glass bottles, iron spiral staircases, and art pieces made from different materials on every floor.

The 'Toddler Town', a section for children, is safely designed but still full of imagination.

On the other hand, the 'Cabin Inn', a space for adults, is a bar that recreates a 19th-century wooden cabin, serving as a small resting place for explorers to gather and relax.

The true charm of City Museum is that it is a "space without answers".

There are no maps or set paths. Visitors must find their own way, and in the process, they rediscover the sense of 'exploration' like children.

At first, it seems like just a playground for kids, but at some point, adults also forget reality and laugh within it.

This is why many travelers call it 'the craziest museum in the world'.

Bob Cassilly passed away in 2011, but his spirit still lives on there.

He often said, "Art must be tangible to be real," and City Museum is a space where that philosophy is perfectly realized.

In the midst of St. Louis's old industrial area, it shows another face of the city where the past and present intertwine. That is City Museum.