Alcove and Penetralia

Alcove noun - A freestanding airy structure in a scenic setting (as a park) typically offering commanding views.

Penetralia and alcove are semantically related In some cases you can use "Penetralia" instead a noun "Alcove".

Penetralia noun - The innermost parts.

Alcove and penetralia are semantically related in niche topic. Sometimes you can use "Alcove" instead a noun "Penetralia".