1
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tunnel
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Europe
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Tunnels are commonly used for efficient transportation, especially in mountainous regions.
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1
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2
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tunnels
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Europe
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Tunnels are common for transportation, especially in urban areas, and are often associated with modern infrastructure projects.
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1
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3
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underground map
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Europe
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Commonly used for navigating public transportation systems, especially in major cities like London and Paris
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1
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4
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underground map
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Europe
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Crucial tool for navigating public transportation systems, especially in major cities like London and Paris
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1
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5
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underground map
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Europe
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Vital tool for navigating the extensive subway systems of major cities like London and Paris
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1
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