leo.roos: Oosterschelde floodbarrier
leo.roos: Firth of Forth bridge(s)
leo.roos: School's out for summer
leo.roos: Dalton Scholengemeenschap, Brandes, The Hague, 1929-1933
leo.roos: A castle, this must be Scotland
leo.roos: Winter Windmill 't Woudt
leo.roos: HERAS
leo.roos: Base of windmill
leo.roos: Grassnet
leo.roos: At the building site 4
leo.roos: At the building site 3
leo.roos: At the building site 2
leo.roos: At the building site 1