Last weekend, i went to friend's house in Tuscany for to have a little holiday. We stayed into the pub, for eat a sandwich and listen music from a live boy-band that sing there. Besides, we went to the sea for swim and bronze.

What did you do last weekend? I went to my cousin's house. Does your cousin live far away? or Did you travel far? or Is your cousin's house far from here? or Is it far from here?

"What did you do last weekend?" / "Where did you go last weekend?" - "I went to my cousin's house." - "Is it far?" "was it far" is not wrong, but I would personally use "is it far" because your cousin's house did not move in the meantime, so the distance remains the same.