american history tv on c-span3. [ speaking foreign language ] >>> want to welcome you all to castillo dos marcos. the fortress behind you is the fourth fortification to bear this maim but it is the first one to be made out of stone at st. augustine and it was built for a particular reason. spain decided they had to build a stone fortification in st. augustine to ensure their foothold on the florida terth. they were concerned about england encroaching and pushing them out of the area and they saw florida as very important in helping to defend their hold on the caribbean and central and south america. they start construction in 16 72, complete it in 1695. you got 23 years worth of construction. the biggest reason for all that time only about 175 people working on the project at any one time. all the stone had to be quarried from over on the island across the bay, barged across. no mechanical stuff, no metal banks. it db barges. it is allan

castillo dos marcos. the fortress behind you is the fourth fortification to bear this maim but it is the first one to be made out of stone at st. augustine and it was built for a particular reason. spain decided they had to build a stone fortification in st. augustine to ensure their foothold on the florida terth. they were concerned about england encroaching and pushing them out of the area and they saw florida as very important in helping to defend their hold on the caribbean and central and south america. they start construction in 16 72, complete it in 1695. you got 23 years worth of construction. the biggest reason for all that time only about 175 people working on the project at any one time. all the stone had to be quarried from over on the island across the bay, barged across. no mechanical stuff, no metal banks. it db barges. it is all man-made stuff. bruce force and ignorance as my dad used to say as they move it around. they're building with very simple machines, ramps, pulleys, ramps. all the