Prominent landmarks on nautical charts, such as towers and flagpoles, are indicated by which symbol?

• A. Square
• B. Circle
• C. Triangle
• D. Diamond

Answer: (B)

Prominent landmarks are shown with a circle symbol on nautical charts. The circle is chosen because it’s simple, highly recognizable at a glance, and stands out amid other chart features, making it easy for mariners to spot known towers or flagpoles and use them for fixing position and orientation. The other shapes are used for different feature types and aren’t as effective for representing tall, conspicuous man‑made landmarks. So the circle is the standard symbol for these landmarks.