I quite enjoyed visiting Ulm, Germany. Hometown of Albert Einstein.
Of many highlights, most memorable is Ulm Minster (German: Ulmer Münster).
I went several times, calling it the MONSTER.
This photo and video do not do justice to the height of the thing.

The top is 161.53m (530ft) making it the “world’s tallest church“.
It’s one of 10 Famous Buildings In Germany.
Click PLAY or watch it on YouTube.