In Solidworks, generally, if you enlarge a 3D object, you always see its external wall.
Let's consider a closed tank, warehouse hall or device housing. It is impossible to look inside without a cross -section or changing the display method.
It turns out, that it is possible to penetrate the wall. This can only be done with Camera view!
After defining the camera, turn off its lock (under the right button). Then, using a scroll, you can enlarge or reduce the image with the eye of the camera.
Jeżeli odpowiednio powiększysz obraz – przenikniesz przez ścianę budynku.
Analogicznie w przypadku zbiornika – bez problemu można zajrzeć do jego wnętrza. 
