meaning of "sweeping"

[Our Tort System]

Hi,

Just came across this sentence:

They walked to the cathedral's sweeping front steps.

What could "sweeping" mean here? None of the definitions I've found seem to fit the bill here.

Thanks.
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If it's not easy, don't do it!
That's how I got where I am.

[Mister Micawber]

taking in ... a wide area.
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Native English teacher at Mister Micawber's

[Our Tort System]

Hello MM,

So, the steps were simply wide, right?
_________________
If it's not easy, don't do it!
That's how I got where I am.

[Mister Micawber]

Yes, and probably they spread wider as they descend.
_________________
Native English teacher at Mister Micawber's