Homo Erectus fossils have been found in the caves dating back 230,000 to 250,000 years ago, while homo sapiens have been known to live there about 27,000 years ago.
The air quality is often poor in Beijing. It is so bad, especially in the winter, many people often wear face masks.
The city is well known for it's large amount of cyclists. The land is flat, so the use of bicycles has risen.
The capital and most populous city of the Hashemite Kingdom of Jordan.
is the most populated city in the United States of America, and considered one of the world's cultural capitals.
The capital of Vietnam and the country's second largest city.
The capital and second largest city of the Philippines.
The capital and largest city in Peru.
Is the largest city in Maryland, the country’s 24th largest city and is located in the central part of the state.
is the third largest city in the United States by population, and the eighth most economically important city in the world.
The capital and largest city of Poland.
Is an American actress, a film producer and a former fashion model.