Finnish to English Art/Literary Architecture

In texts explaining their buildings, contemporary Finnish architects are fond of the word ”elämyksellinen”. The typical dictionary definitions are: experiential, empirical, life-affording, life-enhancing, rich and, perhaps most commonly, memorable. The choice of translation of course may vary from case to case. Below are 3 examples, from the same text, where the client suggested the same word should be used in all cases. The word eventually chosen was ‘memorable’: but in parentheses I have placed the word I was originally suggesting. I’d welcome any thoughts on this?

Materiaalien luonteva ja elämyksellinen ikääntyminen.
The natural and memorable (distinguished) aging of the materials. [Here ‘memorable aging’ sounds odd)

Sijoittelun tuloksena syntyneen pihan käsittely on elämyksellistä ja oppimista tukevaa.
As a consequence of its placement, the handling of the yard is memorable (rich) and supportive of learning.

Telakka transformoituu elämykselliseksi museoksi.
The dock is transformed into a museum offering memorable experiences.