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looper23: Bakerloo, Elephant & Castle Underground station
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looper23: Regent's Park Underground station
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looper23: Regent's Park Underground station
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looper23: Regent's Park Underground station
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looper23: Regent's Park Underground station
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looper23: Marylebone Road Urban Atmospheric Observatory
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looper23: Marylebone Road Urban Atmospheric Observatory
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looper23: Baker Street station subway
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looper23: old advertising, Baker Street Underground station
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looper23: old advertising, Baker Street Underground station
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looper23: Baker Street Underground station
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looper23: Watford Underground station
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looper23: Watford Underground station
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looper23: Watford Underground station
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looper23: Watford Underground station
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looper23: signage, Watford Underground station
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looper23: Croxley Green Sun clock tower
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looper23: Croxley Green station
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looper23: Croxley Green station
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looper23: Croxley Green station
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looper23: Croxley Green station
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looper23: Croxley Green Sun clock tower
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looper23: Rembrandt House, Watford
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looper23: Rembrandt House, Watford
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looper23: Rembrandt House, Watford
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looper23: Watford West station
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looper23: Watford West station
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looper23: Watford West station
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looper23: Watford West station
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looper23: Watford West station