https://www.albiflora.eu/blog/?page_id=1165

Looks similar to Gymndenia conopsea.

What a magnificent building! Another possibility could be Platanthera chlorantha.

carol23 & peren

Thanks guys, but I don't think either.

Both suggestions have multiflowered flower spikes. These have spikes that appear to terminate in a 3(?) flower cluster, almost Iris like. In the first image, you can see the 3 dead flowers, middle rear, and the 2nd shows 2 of the blooms.

Fof

As an aside.

The building is actually a water tower, built in 1820, with an outside skin..Between them are rooms, 1 per floor, 4 floors.

Roscoea x beesiana.

Thank you, floral. Never suspected that it was a member of the ginger family.

Fof

Flower shape characteristic for the genus, which is being grown by plant geeks these days.