Walking along the city walls, don’t miss the famous St. Columb's Cathedral. The cathedral was built between 1628-1633 and has a strong Gothic church architectural style. Through the cemetery connected to the city wall, we walked into this cathedral. The church was solemn and sacred. Similar to many classical churches I have seen in Europe, the glass windows of the church are still decorated with various colorful religious patterns. For grace.
The cemetery of St. Columbus’ church cannot be accessed due to renovations, but the tombstones and statues are very interesting, and the area around the cathedral is quite large. It only takes about twenty minutes or so to read some of the tombstones whose text is still visible, and stroll on the walls of Londonderry.