underground room

That underground room bore a wall of electrical cabinets with multicolored buttons and was lined with dozens of cables.

How could an underground room be big enough to have a horizon?

The instant Josie crawled out of her drawer the night before her first day of kindergarten, an alarm went off in another underground room.

When they arrive and when the cave is ready, scientists will move the entire setup to this dark underground room and start running real trials.

It permeates the underground room where the last five dozen soot-covered miners take a break during their 10-hour shifts and the stylish café where their retired predecessors gather on weekday mornings to trade news.