The Great Wall of China is a series of fortifications that were built across the historical northern borders of ------- Chinies

The Colosseum is an oval amphitheatre in the centre of the city of Rome,-------.

Chichen Itza was a large pre-Columbian city built by the -------- people.

This article is about the ancient Jordanian city of ------.

Machu Picchu is a -------century Inca citadel.