Kindly reference the following link(s):
Is looking at the Kabah a form of worship?
Dua in front of the Kabah, touching the Kiswah, Maqam e Ibrahim & walls of Kabah
Hanging by, touching, rubbing clothes, wiping Kiswah(Curtains) of kaba in Umrah & Hajj
Is your dua accepted when you see the Kabah for the first time and make dua?
When a pilgrim comes back from Hajj, is his dua answered for 40 days?
Is it prohibited to look at the Kabah while doing tawaf?