"Oh, wow." Sulu had plenty of 21st century "secret lair" references in his memory, from all sorts of classic vids, but they didn't have anything on this. He took a few steps past Ianto, craning his neck to look up towards the ceiling before dragging them down over the fountain, the catwalks and greenhouse and everything within eyesight before finally looking back at Ianto.

"This is definitely awesome," he grinned, clearly impressed.