The fragments of the defensive walls Lviv city which have been preserved in our time.

The walls of the ancient Lviv city did not cover the many monasteries that were already beyond the then city. Therefore residents of these monasteries alone built fortifications.
Like Kramer Tower.

Better fortifications fragments of Bernardine monastery with Glinjansk Tower and Gate and Tower in Mitna square.

Modern Lviv citizens can only see what remains of the power structure, which saved more than once.