The Venture League Map Room is a Venture League command center located within Nexus Tower. A giant hologram of the history of Planet Crux is located in the middle. It repeatedly replays a simple version of the four explorers ( Doc Overbuild, Hael Storm, Duke Exeter, Baron Typhonus) landing and destroying the planet.
The maps around the room facing the center show various images, including some of
Aura Mar. Upstairs is the Venture League Observatory, personal quarters of Hael Storm and location of a LEGO Club Door.
One of Doctor Overbuild's Questions of the Week states that weekly Nexus Force council meetings are held in the "Venture League War Room", which may refer to either the Venture League Map Room or  Sentinel War Room.
Venture Room Hologram
The hologram animation by Cassie Brubaker
The Venture League Observatory, located above the Map Room