Some archive scavenging...
I showed a similar photo about 3 years ago, see here.
I wanted to make a horizontal photo all along, but unfortunately the
stairs were really packed. Back then, I didn't have the photoshop
skill to remove them. Skills got better so I've redone it ;-)
So the stairs are basically created using the clone stamp...
I had to use 2 horizontal shots, one with the camera tilted down and one with the cam tilted up and stitch them to get a so called vertorama (nod to Paul :-)), otherwise the railing would've been cut off.
As you can guess from the ISO, it's handheld at 1/15 second. I had to choose f/11 so the railing would be sharp from beginning to end.
Only 1 exposure no HDR
Oh, and please view it large on black - press 'L' - else you'll miss all the details...