About the Author … 2
Planner's Note… 4
Character introduction… 8

1.
Butler, let's go together forever! … 10
[Catmarble Successor Training School] The Industrial Revolution and the Age of Iron

2.
The Iron Wizard and the Eiffel Tower… 28
[Catmarble Successor Training Center] Voices Opposing the Eiffel Tower

3.
Paul, the Riveter, a Clown… 48
[Cat Marble Successor Training School] The Iron Wizard, Eiffel

4.
The world's tallest and lightest tower… 66
[Cat Marvel Successor Training Center] The Eiffel Tower, a European architectural masterpiece

5.
The World's Fair opens! … 84
[Cat Marble Successor Training Center] World Expo, a festival of technology and architecture

6.
A room that no one can enter… 108
[Catmarble Successor Training Center] The Eiffel Tower was almost demolished?

Epilogue: Finally Meet! … 134

Appendix … 140

An architectural story that looks beyond landmarks to the world.

When we say 'architecture', we often think of nice houses or tall buildings.
It reminds me of a construction site.
But architecture is not simply the art of building buildings.
This is because architecture contains the ‘way’ and ‘thoughts’ of life of people of a certain era.
That is why, by looking into a building, we can naturally understand all the elements that make up that civilization, including history, science, culture, art, and social structure.


《Yoo Hyun-joon's World Architectural Adventure》 is a book that explains the true meaning of architecture in an interesting way at a child's level.
It goes beyond simply introducing the appearance and location of landmarks around the world, but also provides a three-dimensional view of the historical background and social conditions in which the landmarks were built, the thoughts of the people of that time, and their unique architectural styles.
Through this book, young readers will naturally come to understand that architecture is the result of all of human civilization.
Now, go beyond landmarks and take a step closer to the architectural story that embodies human values.


Integrated knowledge and creativity at the same time!

What kind of knowledge does architecture contain? It's easy to think of it as containing only the visual elements, like design or art.
But in fact, architecture is a comprehensive art and science that combines almost all the subjects we learn in school, including math, science, art, history, and society.
Isn't it amazing? Subjects that are taught separately in textbooks are woven together into a single narrative within the theme of architecture.
"Hyunjun Yoo's World Architectural Adventure" is a book that helps children think and expand on their own by integrating these separate pieces of knowledge within the framework of architecture.


As you follow Hyun-jun and Aki's adventures, you'll naturally connect diverse knowledge in an engaging story, from how mathematics is used to calculate architectural structures, to how science makes buildings stronger and safer, to how politics and philosophy add meaning to space.

And that's not all.
"Yoo Hyun-joon's World Architectural Adventure" provides an opportunity to connect and weave together the various knowledge contained within landmarks through creative thinking.
Because architecture is not simply the sum of all knowledge, but also the result of creative thinking.
As we go through the creative process of weaving together the knowledge we have each learned, our thoughts will become deeper and broader.
Now, experience the wonderful experience of expanding your ‘land of thought’ through architecture.

Informative and fun! Has architecture ever been this interesting?

For children, ‘architecture’ can feel a bit unfamiliar and sometimes boring.
When you hear things like, "Architecture embodies human history and culture," or "You can learn a variety of knowledge through architecture," you might feel a sense of distance, thinking, "Am I just studying again?"
To eliminate this sense of distance, "Yoo Hyun-joon's World Architecture Adventure" adds an interesting setting called the "Land Marble Game" so that children can become engrossed and lose track of time, reimagining the architectural story as a thrilling adventure.


Aki, successor to the secretive cat gang "Cat Marble," who have protected landmarks around the world, and architect Yoo Hyun-jun, who is sucked into a board game! Roll the dice and solve missions one by one! Isn't this exciting and heart-pounding?

As you follow Hyun-jun and Aki's adventures, a fresh world you've never experienced before unfolds before your eyes.
Travel back in time to the era when landmarks were built, solve missions, learn various knowledge, and develop your creativity.
Most importantly, this entire journey is fun! It's not just a "building story that feels like studying," but an "architectural adventure that feels like a game." Now, an incredible journey to protect landmarks around the world begins.


Planner's note

The power to connect the world begins with architecture.

From a young age, we grow up learning various subjects such as Korean, English, math, science, social studies, music, and art.
In school, these subjects are taught separately, and we try to understand the world by accumulating knowledge in different fields.
However, the ability to think in an integrated way by linking these divided pieces of knowledge together is not taught well.
Ultimately, we learn a lot, but we are unable to connect them organically to create new ideas.

I know a lot, but why do my thoughts get blocked?

What causes this problem? It's because there's no central point connecting the myriad pieces of knowledge we learn.
Have you ever connected a poem you learned in Korean class to a mathematical principle? Have you ever imagined the lives of historical figures by combining them with the laws of physics? Most likely not.
We are still stuck within the framework of 'subjects' and are accustomed to understanding each field separately.
But the world is not divided like that.
In reality, society is much more complex, a huge network where everything is organically intertwined.

So what should be the focal point connecting these different areas of knowledge? One answer is "architecture."
Architecture is not simply about building houses.
Architecture is a comprehensive work that designs the space in which people live and makes life unfold within it.
For a single building to be completed, numerous fields such as science, technology, art, economics, history, and psychology must be organically connected.
Architects consider people's movements and lifestyles, the natural environment, their relationship with the surrounding city, the physical properties of materials, and even the cultural experiences that will occur in that space.

"Yoo Hyun-joon's World Architectural Adventure" is a journey that takes you on a new look at the world through the lens of architecture.
This journey will not simply describe a building made of brick and steel, but will also unravel the history, technology, art, and social meaning contained within it.
It provides an engaging and accessible explanation of why each city's buildings and spaces were built the way they are, the stories of the people hidden within them, and how our lives are changing through architecture.

Opening the Door to Creative, Integrative Thinking through Architecture

This book will be especially eye-opening for children and young readers.
It shows how knowledge learned in isolation from textbooks can be connected and applied in real-world cities and architecture.
You'll learn firsthand how mathematics is used in architectural structures, how science ensures building safety and energy efficiency, and how art expresses the beauty of architecture.
This will enable readers to develop the ability to think creatively and integrate multiple disciplines to solve problems in an increasingly complex world.

『Hyunjun Yoo's World Architectural Adventure』 is not just a book for learning architecture.
This book presents a new perspective on the world and is like a map that connects the scattered knowledge in our minds.
Each time you turn the page, you will experience a fresh experience, as if you were walking through a city, listening to the whispers of space, and conversing with the buildings.
Now, let's begin the Landmarble game. We hope this journey, where you explore the world through the window of architecture and broaden your horizons, will inspire you.
Let's embark on an interesting architectural story together.
Because architecture is the story of the world.

Architect Yoo Hyun-jun