Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban ExplorationPhoto by darkcyanide

Last week, we brought you inside the Grand Central Terminal clock, the largest Tiffany clock in the world, with urban explorer darkcyanide and dirtydav1This week, they’ve scaled the roof of the famous terminal showing us how cleverly the building hides its necessary infrastructure. See below for more incredible photos and brush up on the secrets of Grand Central Terminal.

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-007Photo by darkcyanide

As darkcyanide tells Untapped, “the unique part of the exploration is how much of a maze it is. You can literally get lost up there if you dont know your way around. The craziest thing how thin the ceiling to the main concourse is where the green ceiling with the stars are at. If anyone wandered off the wooden path and stepped onto the thin ceiling you probably end up going straight through the main concourse. The weirdest thing is that its normally very loud in the main concourse but if you were to step above the green ceiling, its actually very quiet. Can barely hear anything even though the ceiling is thin.”

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-004Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-009Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-008Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-010Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-003Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-006Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-005Photo by darkcyanide

Roof of Grand Central Terminal-Dark Cyanide-Instagram-Untapped Cities-NYC-Urban Exploration-001Side window to the main concourse. Photo by darkcyanide.

Be sure to catch up on the top 10 secrets of Grand Central Terminal, look inside the Tiffany clock, and see the hidden walkways windows.