The insane amounts of detail in the game (kudos Rockstar)

[Mave]

A player shot a store owner in the leg while robbing him. Upon returning a few ingame days later, he had his leg amputated and replaced by a wooden one.

 

[Mave]

A player killed a random person at the train station. Upon returning a few days later, the body was gone, but the blood stains were still on the wood.

 

[Mave]

If you kill someone and throw their body in a pig pen, the pigs will start eating the body.

 

[Mave]

A bird flying away with a snake he just caught.

 

[Mave]

Railroads are actually built over time.

 

[Mave]

5 animals, all killed two days apart.

 

[Mave]

NPC accidentally kills himself by moving shotgun

 

[Mave]

How a dead horse looks after a few hours upon returning to the same location.

 

[Mave]

At night you can see the lights of St. Denis all the way from north of Van Horn.

 

[Mave]

The cigarette cards aren't made up, they existed for real: