Our brains build maps of the environment that help us understand the world around us, allowing us to think, recall, and plan.

But when Feb. 14 rolls around, lovers trade letters or cards and give gifts, much like they do in the U.S. If you’ve had enough of heart-shaped trinkets on Valentine’s Day, get inspired by ...

Here are 20 stores Walmart has in countries outside of the U.S. and what it looks like to shop there. Just because you've ...