Gibraltar in the north, the Burke Fortress, has been strengthening and expanding its fortifications to resist foreign aggression since 963 AD. Since it is necessary to protect the whole city, the defense construction of bunkers, underground passages, etc. has been built and the whole system is quite large and complicated. Later, because it was a neutral country in 1867 and was asked to dismantle the fortress, 90 [%] of the fortress is now invisible, and the Baker fortress, a few of which have been retained, is now open to the public. Opposite the Baker fortress is an observation deck, and you can see the Grund area again from different angles. But the view here is probably the most classic view of the old town. Forts, towns, rivers and churches are at once in a panoramic view, and the danger of the terrain is also seen. It records the time of the city's construction in Luxembourg and how far it is to the cities. Does the beauty of this place break the impression that there seems to be nothing in Luxembourg?