ToE H5/HoF
Magic Guild level one
Magic Guild level one Cost Requirements Magic Guild level one
  • 2000
  • 5
  • 5
 Town Level 3
Effect
Allows a visiting hero to learn the spells kept within. Keeps 3 spells of the first circle.
Magic Guild level two
Magic Guild level two Cost Requirements Magic Guild level two
  • 1000
  • 5
  • 5
  • 1
  • 1
  • 1
  • 1
 Town Level 3
Magic Guild level one
Effect
An upgrade of the Magic Guild level one.
Allows a visiting hero to learn the spells kept within. Adds 3 spells of the second circle.
Magic Guild level three
Magic Guild level three Cost Requirements Magic Guild level three
  • 1000
  • 5
  • 5
  • 2
  • 2
  • 2
  • 2
 Town Level 3
Magic Guild level two
Effect
An upgrade of the Magic Guild level two.
Allows a visiting hero to learn the spells kept within. Adds 3 spells of the third circle.
Magic Guild level four
Magic Guild level four Cost Requirements Magic Guild level four
  • 1000
  • 5
  • 5
  • 3
  • 3
  • 3
  • 3
 Town Level 3
Magic Guild level three
Effect
An upgrade of the Magic Guild level three.
Allows a visiting hero to learn the spells kept within. Adds 2 spells of the fourth circle.
Magic Guild level five
Magic Guild level five Cost Requirements Magic Guild level five
  • 1000
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
 Town Level 3
Magic Guild level four
Effect
An upgrade of the Magic Guild level four.
Allows a visiting hero to learn the spells kept within. Adds 2 spells of the fifth circle.
Runic Shrine level one
Runic Shrine level one Cost Requirements Runic Shrine level one
  • 1000
  • 1
  • 1
  • 1
  • 1
  • 1
 Town Level 3
Effect
Allows a visiting hero to learn magic runes from the first and second Runic Circle.
Runic Shrine level two
Runic Shrine level two Cost Requirements Runic Shrine level two
  • 4000
  • 2
  • 2
  • 2
  • 2
  • 2
 Town Level 3
Runic Shrine level one
Effect
An upgrade of the Runic Shrine level one.
Allows a visiting hero to learn magic runes from the third and fourth Runic Circle.
Runic Shrine level three
Runic Shrine level three Cost Requirements Runic Shrine level three
  • 6000
  • 3
  • 3
  • 3
  • 3
  • 3
 Town Level 3
Runic Shrine level two
Effect
An upgrade of the Runic Shrine level two.
Allows a visiting hero to learn a magic rune from the fifth Runic Circle.
Wrestler's Arena
Wrestler's Arena Cost Requirements Wrestler's Arena
  • 1000
  • 5
  • 5
 Town Level 12
Fighting Ring
Effect
Boosts Brawler and Berserker growth by +4 per week.
Guard Post
Guard Post Cost Requirements Guard Post
  • 1000
  • 10
Effect
The Guard Post allows you to add a stack of aditional units directly to the battlefield when defending the town from a siege.
Stoneworks
Stoneworks Cost Requirements Stoneworks
  • 1000
  • 5
  • 5
 Town Level 12
Citadel
Effect
When Stoneworks are built, the walls of town are harder to destroy during a siege.
Runic Sanctuary
Runic Sanctuary Cost Requirements Runic Sanctuary
  • 1500
 Town Level 12
Runic Chapel
Effect
Boosts Rune Priest and Rune Patriarch growth by +1 per week.
Blazing Anvil
Blazing Anvil Cost Requirements Blazing Anvil
Effect
The Blazing Anvil increases weekly creature growth by 50%, provides your empire with additional 5000 gold each day, boosts spell power for defending heroes by +6 and Defense for the creatures by +6. Allows defending heroes to use runes wasting no resources. A Tear of Asha is required to build this structure.
This information comes from the Heroes V release version (v2.1).

Thanks to Fiur for the in-game screenshots.
Thanks to sfidanza for the work on this page.
Thanks to ThE_HyDrA for creating and looking after the Heroes 5 section of Age of Heroes!