You will find credits to works used on this website.

1)

File: Marie Byrd Land in Antarctica.svg
Author: Created by TUBS as their “own work,” incorporating elements adapted from the works of Alexrk2 and The World Factbook/CIA.
Source: Wikimedia Commons
License: This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported License (CC BY-SA 3.0).
Attribution: You are free to share and adapt this work, provided appropriate credit is given and any adaptations are shared under the same license.