望楼

1. Origins, structure, and basic meaning

• Structure: 望楼, read ぼうろう, is a watchtower or observation tower positioned to survey the distance.
• Basic usage: It may stand on a castle wall overlooking a forest or remain on a hill above a harbor.

2. Common pitfalls and similar expressions

• A high tower for watching the distance
  • This is a tower on a wall or hill used to look across a forest or harbor. Its observational position matters more than height alone.