packet of new notebooks.Each week,he and his two older brothers exchange trash for fresh fruit or 2 pounds of protein-rich beans.The program helps the poor.In 1995,the city exchanged nearly 2 million pounds of food,348,000 Easter eggs and 26,000 Christmas cakes for recyclable trash.Hundreds of quilts for the needy were stuffed with crushed styrofoam. Christiano was one of 25,000 poor children who received these supplies.(13) 3 (14)Old worn out equipment was frequently being replaced with new technology and equipment.Like every other city,old,yet usable materials were being dumped around the city of Curitiba.This gave engineers and architects an opportunity to work together to use the materials creatively.Old wooden telephone poles are now reused in office buildings, bridges and public squares.Retired buses have become mobile classrooms for adult education."Virtually everything has more than one use,said Mayor Rafael Greca,whose airy office overlooking a park is made of old poles and glass."It's just a matter of figuring out how to reuse things and then teaching people how to do it. 4 (15)The latest additions are the Lighthouses of Learning,based on the great lighthouse and library in Alexandria.Egypt,one of the ancient world's seven wonders.The first lighthouse was built as an experiment in 1995 to determine exactly who would use it, and the effect it would have on the surrounding neighborhood.Within six months of being opened,it was clear that it was popular.Soon after,a lighthouse was built in each of the city's neighborhoods. 5 (16)"One of the lighthouses is three blocks from my home,so I use it for all my school projects,"said Deucina Costa,a high school senior who stops in every couple of weeks."So do my 10-year-old brother and 12-year-old sister.Mom lets them come because it's safe.Now,the lighthouses have become the focal point of neighborhoods and have cut crime rates.They each cost about $180,000.(17) 6 (18)Unlike other cities where government buildings are located in an often isolated,high rent area,government offices in Curitiba are accessible to everyone on what is known as Citizen Streets.These Citizen Streets are colorful covered avenues of government offices and shops where residents can pay utility bills,get a marriage license,have a haircut, buy groceries or file a police report.And instead of zoning the city into commercial, institutional and leisure facilities as most cities do,Curitiba's planners have merged them all together so that people can use their time effectively at a minimum cost.The Citizen Streets 633packet of new notebooks. Each week , he and his two older brothers exchange trash for fresh fruit or 2 pounds of protein-rich beans. The program helps the poor. In 1995 , the city exchanged nearly 2 million pounds of food , 348 ,000 Easter eggs and 26 ,000 Christmas cakes for recyclable trash. Hundreds of quilts for the needy were stuffed with crushed styrofoam. Christiano was one of 25 ,000 poor children who received these supplies. (1 3) 3 (1 4) Old worn out equipment was frequently being replaced with new technology and equipment. Like every other city , old , yet usable materials were being dumped around the city of Curitiba. This gave engineers and architects an opportunity to work together to use the materials creatively. Old wooden telephone poles are now reused in office buildings, bridges and public squares. Retired buses have become mobile classrooms for adult education. "Virtually everything has more than one use ," said Mayor Rafael Greca , whose airy office overlooking a park is made of old poles and glass. "It' s j ust a matter of figuring out how to reuse things and then teaching people how to do it. " 4 (1 5) The latest additions are the Lighthouses of Learning , based on the great lighthouse and library in Alexandria. Egypt , one of the ancient world's seven wonders. The first lighthouse was built as an experiment in 1995 to determine exactly who would use it , and the effect it would have on the surrounding neighborhood. Within six months of being opened , it was clear that it was popular. Soon after, a lighthouse was built in each of the city' s neighborhoods. 5 (16) "One of the lighthouses is three blocks from my home , so 1 use it for all my school projects," said Deucina Costa , a high school senior who stops in every couple of weeks. "So do my 10-year-old brother and 12-year-old sister. Mom lets them come because it' s safe. " Now , the lighthouses have become the focal point of neighborhoods and have cut crime rates. They each cost about $ 180 ,000. (1 7) 6 (18) Unlike other cities where government buildings are located in an often isolated , high rent area , government offices in Curitiba are accessible to everyone on what is known as Citizen Streets. These Citizen Streets are colorful covered avenues of government offices and shops where residents can pay utility bills, get a marriage license , have a haircut , buy groceries or file a police report. And instead of zoning the city into commercial , institutional and leisure fa