"One of the top public works projects in the world built to protect the Chinese Empire from invading armies. Try to imagine managing the materials & labor on this project!"
"One of the top public works projects in the world! Take a ride through the tunnel and travel between France and the UK."
"The Panama Canal is one of the top public works projects in the world. Visit the The Miraflores Visitors Center to learn how the canal operates and get a close up view of the ships!"
"Walk, bike, or drive across this incredible bridge - one of the top public works projects in the United States! It's also fun to take a boat ride to get a view from the water."
"Hoover Dam is one of the top public works projects in the United States. According to Wikipedia the dam is 726.4 ft high and the annual power generation is 4.2 billion KWh. Make sure to take the tour!"
ダム
· Boulder City, アメリカ合衆国
9.4