Tag 'architect = Johann Jakob Helfft'

• 1: note
• 1: bridge:structure
• 1: heritage:website
• 1: man_made
• 1: lda:criteria
• 1: architect
• 1: heritage
• 1: heritage:operator
• 1: wikimedia_commons
• 1: layer
• 1: name
• 1: ref:lda
• 1: wikipedia
• 1: wikidata
• 1: start_date