I found these mysterious buildings in Singapore. The locals do not know what it is and what it is being used for. Some think it might be a giant toilet.
Mysterious Buildings in Singapore
![Mysterious Buildings in Singapore](https://www.denis-carbone.com/blog/wp-content/uploads/2023/04/IMG_2374-1024x993.jpg)
I found these mysterious buildings in Singapore. The locals do not know what it is and what it is being used for. Some think it might be a giant toilet.
Is this subway in Seoul under construction or art?