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Saluran Pembuangan Bawah Tanah Metropolitan Outer Area
Saluran Pembuangan Bawah Tanah Metropolitan Outer Area adalah salah satu saluran pembuangan bawah tanah terbesar di dunia, mengalir 50 meter di bawah tanah. Tangki pengatur tekanan, juga dikenal sebagai Kuil Bawah Tanah, memiliki lebar 78 m, panjang 177 m, dan tinggi 18 m, dan merupakan tempat populer untuk pariwisata infrastruktur.