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Leonardos Workshop

Leonardo's Workshop World Wonder

Effects
Five (5) units or 15% of your land combat units (whichever number is larger) will be upgraded on construction of the wonder. A unit must be within your territory, you must have the required tech for the unit upgrade, and you must have the required resources before an individual unit will be upgraded. If you do not have enough qualifying units within your territory, as many as possible will be upgraded, but you will lose the free upgrading for the remainder.

After contructing the wonder, until researching the Replaceable Parts technology, one additional unit will be upgraded every time you research a tech that unlocks a new land combat unit type. If you have no qualifying units within your territory, you lose the free unit upgrade.

No single unit can be free upgraded more than once, and Roman Legions and Japanese Samurai are never upgraded by Leonardo's Workshop.

Mod CivFanatics Page
CivFanatics Discussion Page[forums.civfanatics.com]

Direct Download
CivFanatics Download Database Page[forums.civfanatics.com]

Instructions to 'Hotfix' the Bug in V4
This will allow you to continue playing your current game until you are ready to update to V5
V4 HotFix Patch Instructions[forums.civfanatics.com]

Download Trouble-Shooting
How to get this mod to download, and how to use it in-game:
click the link {LINK REMOVED}Hints on Enabling and Using Mods

Direct Download Via the SteamWorkshop Downloader
Steam Workshop Downloader Link[steamworkshopdownloader.com]
1. Copy or drag the xxxx.civ5mod file from your downbloads folder to your Documents/My Games/Sid Meier's Civilization 5/MODS/ folder.
2. The start the game and go into the MODS menu.
3. Wait about 30 seconds and the mod should unpack itself from the zipped form and be ready to use.