Concrete platform stairs?

Doesn't anyone else have a concrete podium staircase in their house?

Not in our own house, but photo provided by a colleague, Susanne Buchholz, real estate photographer (permission for publication granted by owner, photographer, and BU):

We have also installed a platform staircase made of concrete. The treads are made of oak (white oiled), the risers of white-coated wooden panels. In the basement, the steps are made of granite. The railing is a mix of stainless steel rods and oak. On the upper floor, we have currently installed a glass panel in front of the horizontal rods so that our little one does not get any silly ideas.