Beta Places are places and land the was removed from the final version of the game. Some of these places were either removed, renamed, changed or deleted in the final development game.
GTA III
Unknown Portland Island prison
It is believed that once in the development stages of the game, there was a prison to the north-east of 8-Ball's bomb shop on Portland Island on an extended area of land. This is supported by the fact that Claude, the game's protagonist, was being transported there in a prison convoy in the opening cutscene.
Callahan Bridge
The Callahan Bridge was originally going to be called West Port Bridge (It can still be seen in a sign near Chinatown).
Chinatown
The area of Chinatown was different.
Airport
Francis International Airport was originally on Staunton Island. When the airport was on Staunton, there was a mission to destroy the airport using a Dodo.
Unnamed Ship
In the early maps of Liberty City, there was a docked ship (likely a cargo ship) at Staunton Island.
Missing Roads
There were many roads on Portland, Staunton Island and Shoreside Vale that were removed from the final version.
Missing Pier
The pier at the south-west corner of Staunton Island did not exist. Instead, it was land. There are also five unknown boats near the missing pier that do not appear in the final version.
Upstate
The Upstate did not exist in the Beta. If it did, however, it would be shorter because the airport was at one point on Staunton Island.
Shoreside Lift Bridge
In the beta, the Staunton side of the lift bridge was straight out, instead of its current spiral design.
GTA Vice City
Fort Baxter
Fort Baxter Air Base had a long runway and two control towers. One of them was partly left in the game and can be seen when approaching the location from a distance, as the player is seeing the low-resolution model.
Hyman Memorial Stadium
The stadium didn't originally exist.
Leaf Links
At the south part of Leaf Links, there was no bridge.
Vice Port
The area of Vice Port was different.
Escobar International Airport
The first and third runway were longer.
Beta Beaches
The north of Vice City Beach and the little beach near Hyman Memorial Stadium didn't exist.
GTA San Andreas
Unknown Island
An island, which is believed to be based on Alcatraz prison, was cut. It was located in the center of San Fierro Bay.
Bayside
Bayside didn't exist in the Beta. Instead, it was just water.
Easter Bay International Airport
The runway of the airport was shorter in the beta.
GTA Liberty City Stories
Greasy Joe's
It was meant to be returned in GTA LCS or it's just a leftover from GTA III.
GTA IV
Unknown Land Strip
In the northwestern part of Alderney, there was a long strip of land that was cut in the final. It is unknown what would have been there.
Unknown Airport
In the southwestern area of Alderney State, there was what appeared to be an airport that was cut.
Francis International Airport
The runway was shaped more like a trapezoid in the beta, rather than the triangle that is in the final game. It was most likely designed for flyable planes, which were also cut.
Middle Park
Middle Park was significantly larger, the lake was shaped differently, and there was no water in the northern half.
GTA V
Grand Senora Desert
The Grand Senora Desert was much bigger in the beta, it would have more stretch of open roads, more buildings and more highway routes.