Annaberg windmill

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The empty shell of a windmill at the Annaberg sugar plantation on St. John in the US Virgin Islands.
If there was a steady breeze, sugar cane was brought to the windmill. Revolving sails–which have long since disappeared from this windmill–turned a central shaft, rotating the rollers and crushing the sugar cane stalks. Juice ran down the rollers into the gutter and flowed downhill to the factory for processing. 300-500 gallons of juice could be produced in an hour.

Fort Willoughby

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Fort Willoughby on Hassel Island, United States Virgin Islands. Fort Willoughby on the southern tip of the island. The Danes originally had a battery here to protect the harbor entrance. When the British seized the islands during the Napoleonic Wars, they built this fort here to replace the Danish battery. The British eventually gave the territory back to the Danes in 1815.