Where is the entrance to this place?

The Gulf of California is a beautiful gulf in North America.

The Po Valley is a large plain in northern Italy.

I grew up in the Sacramento Valley.

He lives in New York State, USA.

He lives in New York State in America.

Imperialism has played a significant role in history.

The history of the British Empire is very interesting.

The Byzantine Empire, also known as the Eastern Roman Empire, was a powerful empire with a long history.

The Byzantine Empire is a state that developed from the eastern part of the Roman Empire.