Since 2019, new routes are open to visitors at the crypts of Vilnius Cathedral in the northern part of the cathedral provide an opportunity for visitors to learn about and see spaces that for years had been literally inaccessible, bricked up and closed off. Visitors taking the extreme tour will be able to see some of the oldest masonry in Lithuania, remains of a 13th-14th century tower and staircase, invaluable historic masonry of Jogaila and Vytautas’s cathedral, crypts and mausoleum that harken back to numerous different burial customs, walls that evidence the cathedral’s reconstruction, , an 18th century drainage system, Gothic bricks and other valuable items arranged over a rather large area of 120 square meters under Vilnius Cathedral.