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| We were told, that as a by product of digging a moat the old town of Prague the street level was raised (alleviating flooding) resulting in an extensive underground network. | |
| Total images: 37 | Help | |
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| We were told, that as a by product of digging a moat the old town of Prague the street level was raised (alleviating flooding) resulting in an extensive underground network. | |
| Total images: 37 | Help | |