Sometimes in the basement of the igloo you can find not only a villager and a zombie villager, but also something unpredictable. For example, here, going down the stairs, you will find a room with a Nether portal. This seed generates an equally interesting combination of structures – an igloo with a basement in a stronghold. You will find this place at coordinates 1040 ~ 1395.
How to use Igloo With a Basement in a Stronghold seed
Start the Singleplayer mode
Select ‘Create New World’
Then click on ‘More World Options…’
In the ‘Seed for the World generation’ field, enter 2329205432280753620