What item of furniture provided a doorway to another world?

Hello loza1234

A wardrobe was the doorway into the world of Narnia, as described in the book 
"The Lion, the Witch and the Wardrobe" by CS Lewis. 

This book is one of the seven chronicles of Narnia, which tell the
story of the adventures of some children in a fantasy world.

You can find a summary of the story at: http://www.sparknotes.com/lit/lion/

tehuti

Narnia is a thinly-disguised Biblical story. What about the mirror in
Alice's Adventures?

Yes, the Narnia stories are religious allegory, just as the Alice
books are social satire. However, Lewis refrains from overt pulpit
thumping and provides a good plot and well-written narrative. I do not
follow the Christian path, but nevertheless find the Narnia books an
excellent read.

In the children's book "35th of May" by Erich Kaestner, it is also a
wardrobe which provides a doorway to another world. It is a wonderful,
zany book.