Senin, 04 Maret 2019

Radar Reveals 19th-Century Military Fortifications Beneath Alcatraz

A 19th-century military fortification was bulldozed over so that the Alcatraz Penitentiary could be built, and the remains of the fort are still there, underground, according to a new radar analysis of the site.

from Live Science https://ift.tt/2VuhKoi
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