18. They Look Like Two Different Lakes
The Great Lakes, a natural wonder of North America, are renowned for their size and significance. However, a fascinating fact about these bodies of water is that what we commonly refer to as Lake Huron and Lake Michigan are technically one continuous lake body.

Despite their separate names, they are hydrologically connected, sharing the same water level and essentially functioning as one massive lake. Some refer to them as Lake Michigan-Huron, recognizing their unity, while others maintain the distinction.