Improvements:
Aqueduct
Bank
Barracks
Buddhist Temple
Cathedral
Cemetery
Chinese Garden
Coastal Fortress
Colosseum
Courthouse
Farm
Flower Garden
Gazebo
Granary
Harbor
Hindu Temple
Hospital
Library
Marketplace
Muslim Mosque
Palace
Pond
Research
Shipyard
Stables
Stone Temple
Temple Garden
University
Vineyard
Walls
Wealth
Note: Change name of Research to Scholar's Quarters
Small Wonders:
Ballet
Battlefield Medicine
Belem Tower
Catacombs
Cavalry
Compass Rose
Death
Ebony Clock
Green Dome
Iron Works
Judgment
Justice
Knight's Templar
Military Academy
Monastery
Orchestra
Perfume Temple
Saint Basil's Cathedral
Strength
Temperance
Temple of the Sun
The Devil
The Emperor
The Empress
The Fool
The Forbidden Palace
The Hanged Man
The Hermit
The Hierophant
The High Priestess
The Knight of Cups
The Knight of Pentacles
The Knight of Swords
The Knight of Wands
The Locket
The Lovers
The Magician
The Moon
The Raven
The Silk Road
The Sphinx
The Stage
The Stars
The Sun
The Tower
The World
Wind Farm
Possible Small Wonders: Art Museum, Crathe's Castle, Magic Store, the Opera, Poet's Corner
Wonders:
Egyptian Ankh
Kenilworth Castle
Leonardo's Workshop
Sistine Chapel
Skeleton Key
Sun Tzu's Art of War
The Black Horse
The Caravan
The Chariot
The Great Wall
The Hanging Gardens
The Pale Horse
The Pendant
The Pyramids
The Red Horse
The Red Violin
The Tempest
The White Horse
Wheel of Fortune
Possible Occult Wonders: Black Pullet, Emerald Tablet, Felicity Plantation, The Sworn Book, Solomon's Temple
Possible Literature Wonders: Aesop's Fables, Arabian Nights, the Odyssey
Magnum Opus/Spaceship Improvements
1-4: The Chamber, The Altar, The Mirror, the Circle
5-6: The Skull, The Crown
7: The Sword of Vengeance
8: The Chalice of Sorrow
9: The Shield of Protection
10: The Wand of Radiance
Note: Even though the Crown is part 6, it is actually the last part required to cast the Magnum Opus spell.
You have to get the parts in this order:
7-10:
Find all of the magic items in the game, which may be a little difficult.
1-4:
The Chamber, The Altar, The Mirror, The Circle
5-6:
The Skull, The Crown
Note: I changed Matter and Spirit to the Skull (death, matter, mortality) and the Crown (divinity, spirit, immortality). The Magnum Opus screen shows an image of a skull with a crown on top which I think is sort of cool...
Magnum Opus screen.