Hohenzollern Castle in autumn

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castle with stone towers

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Rock of Cashel at sunset

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Rock of Cashel historic site

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Heidelberg Castle — Green, Serene

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Heidelberg Castle in Winter

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Heidelberg Castle at dusk

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Heidelberg Castle at Night

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ruined castle with clock tower

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Heidelberg Castle and Bridge

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Festung Königstein Fortress — Gray

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Durham Cathedral and River Wear

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