Where is "No party & Many rules" Hostel N1, Sofia?

Where is "No party & Many rules" Hostel N1, Sofia located?

"No party & Many rules" Hostel N1, Sofia, "No party & Many rules" Hostel N1, Sofia, Bulgaria (approx. 42.70085°, 23.32442°)

Where is "No party & Many rules" Hostel N1, Sofia on the map?