... Located on the west bank of the Nile River on the outskirts of Cairo, the pyramids at Giza, Egypt, rank as some of the best-known monuments in the world. The ancient Egyptians constructed the pyramids ... one of the most famous pieces of architecture in the world. The Colosseum in Rome The Great Wall stretches across northern China. It consists of a series of walls built by the Ming dynasty in the ... Hanging Gardens of Babylon. Technically, the gardens did not hang, but grew on the roofs and terraces of the royal palace in Babylon. the Hanging Gardens of Babylon The Mausoleum of Halicarnassus,...