PHOTOS: Take A Tour Inside Brooklyn's Soldiers’ and Sailors’ Arch

BROOKLYN, NY — Ever wonder what's inside the iconic archway at the center of Grand Army Plaza?

So did the urban explorers at Untapped New York.

Untapped's Michelle Young and Augustin Pasquet recently got to take a trip inside — and atop — the Soldiers’ and Sailors’ Memorial Arch, which is about to undergo its first restoration in 40 years.

The tour revealed reminders of the monument's 135-year history and a peek into its need for the $9-million upgrade: from the deteriorating iron staircase that will get new life in the restoration, to a room once meant for artifacts from the Civil War and a bronze sculpture stuffed under the staircase that once gave Prospect Park Alliance's architect a scare.

Take a look at photos and video (which Young notes was not meant as a professional video but was "too good not to share") below. You can check out Untapped's full account here.

(Photos and Video Courtesy of Untapped New York).