Explore the world`s many underground spaces! Journey to churches, catacombs, underground cities, fortresses, salt mines and more! 

Underground space map
Western Europe
Eastern Europe
Middle East / Asia / Oceania
North America / South America

Binding Style: Softcover
Pages: 124
Format: H210mm × W148mm
Date published: 09/01/2019
Local retail price: JPY
ISBN: 978-4-902896-31-2

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