RollerCoaster Tycoon (PC)

The cult classic PC game which paved the way for many other Tycoon games to come and even got it's own pinball table. Also well known for being made by one guy almost entirely in assembly language of all things.

Martian Building
The render of this object has supports on the bottom, which are not seen in-game.

Ruined Church
This was likely to be used in either the spooky or graveyard theme sets.

Exotic Sea-Food Stall
This is static in the final game, but was originally supposed to be animated.

Fries/Chips Stall
This is static in the final game, but was originally supposed to be animated.

Regional Differences
Many rides, stalls, and scenarios have different names between the US and UK versions.