Heliograph Tower

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An obelisk-like structure built by the Spanish to serve as a "sun telegraph" that transmitted Morse code messages using the sun's rays. It is one of a few remains of an extensive Spanish military communications and watchtower system in Central Luzon and was later used to store and manufacture sugar.

Where: Phase I, Santa Cruz
Town: Magalang

Adapted from Wikivoyage by its contributors, CC BY-SA 4.0 · 23 Sep 2026

Where it is

15.206757,120.664074

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Map from OpenStreetMap contributors, ODbL.

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