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docs/monuments/amphitheatre.md

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+# Amphitheatre
+
+**Entity Type:** Building (Monument)
+
+## Properties
+
+| Field | Value |
+|-------|-------|
+| Unique | One per island |
+| Unlock Condition | Patricians exist (Tier IV) |
+
+## Construction
+
+- 4 stages
+- Large time + resources required
+- Later stages require expensive materials (marble/glass/iron mentioned)
+
+## Effects (Complete)
+
+| Effect | Value | Radius |
+|--------|-------|--------|
+| Population | +3 | Large |
+| Happiness | +3 | Large |
+| Prestige | +7 | Large |
+
+## Events
+
+Hosts events consuming goods/workforce for city buffs:
+- Local games
+- Grand games
+- Naumachia
+
+## Common Pitfalls
+
+Starting monument too early can bankrupt you (maintenance + diverted materials).