Corinth Canal in Greece is a very popular architectural attraction. It connects the Gulf of Corinth with the Saronic Gulf in the Aegean Sea. This canal is carved down into the rock. It is around 4 miles long and is only 70 feet wide at the base.
Himalayan Road in Himachal Pradesh. The Karakoram Highway is the highest paved international road in the world. It connects China and Pakistan across the Karakoram mountain range, through the Khunjerab Pass, at an elevation of metres .