Täby 425:1 Bunker
Updated:
A bunker from the start of the 20th century that used to be part of the "Northern Front" of Stockholm's fixed defenses. Interestingly, it was built using private, not government, money - although once built it was operated by the Swedish Defense Forces. It is designated RAÄ Täby 425:1[a], and a map of both lines (north and south)[b] can be seen at Wikipedia.
