You are in The Observatory.
Ground you have walked is named. The rest is drawn but unnamed — it is waiting, not missing, and nothing is required of you to find it.
Every realm is named here, and its rooms fold open beneath it. The mark beside a name says which ground you have already walked.
Every door stays where you left it. Esc folds the map.
Most recently arrived — the youngest of the set, by honest timestamp.
Old English niwe (new, fresh, recent), superlative; most recently arrived.
The plain fact of arriving last among a set, settled by timestamp rather than by any claim about worth.