Historic Shot tower within glass dome, Melbourne Shopping Centre, Victoria, Australia (@ Andrew Watson/Axiom/Aurora Photos)
- Six tonnes of shot a week were made here until 1961, when firearms laws changed and demand dropped.""It\s more famous now for producing a charming hourly rendition of Waltzing Matilda
- This nine-storey structure was saved from demolition in 1973 and became part of a vast shopping complex in 1991.""What does it look like from the outside?
- Just a five-minute walk from here you\ll find the execution site of Ned Kelly.""It formally ceased operating as a prison in 1924
- Inside this building, freefalling molten lead used to drop through a copper sieve into a water basin, producing tiny spherical balls.""Sounds complicated - shall we check out some towering images now?