The location for the London landmark is revealed by reading "Oliver Twist" which Professor Drake found on a captured Spacer ship.
The location for the Apollo landmark is revealed by reading "Sir Livingstone's Second Journal" which is located on the desk in Mathias' room at The Lodge.
The location for the Hong Kong landmark is revealed by reading "Maurice Lyon's Journal" which is located on a shelf near the stairs in New Homestead.
The location for the Cairo landmark is revealed by purchasing "The Ancient Civilizations of Egypt" from Sinclair's Books in Akila City.
The location for the opportunity rover on Mars is revealed by touching the plaque at NASA for the opportunity rover exhibit.
The location for the St. Louis Landmark is revelealed when looting "The Price of Destiny" from Benjamin Bayu's desk in his penthouse. Get the key by pickpocketting him.
The location for the Osaka Landmark is revelealed when looting "Diary of Kyosuke Nagata" from the nightstand next to Delgado's bed on the Key.
The location for the Dubai Landmark is revelealed when looting "Race to the Heavens" from the desk in Dumbrosky's quarters on the Siren of the Stars.
The location for the New York Landmark is revelealed when looting "Our Lost Heritage" from the desk in the President's offce at MAST in New Atlantis.
The location for the Los Angeles Landmark is revelealed when looting "Hope Family Tree" from the desk of Ron Hope in HopeTech on Polvo.
The location for the Shanghai Landmark is revelealed when looting "Essentials of Modern Macroeconomics" from the front of the classroom on the ECS Constant.