I wonder why tunnels are round  : and other questions about building

Parker, Steve

Tunnels engineering

The science of bridges and tunnels : the art of engineering

Graham, Ian

The Chunnel

Kallen, Stuart A.

The phantom of the subway

Stilton, Geronimo

Reliquary

Preston, Douglas

The slow regard of silent things

Rothfuss, Patrick

Freight train

Crews, Donald

The dinosaur detectives in the rainbow serpent

Baudet, Stephanie

The tunnel rats

Leather, Stephen