If you're confused about the differences between concrete vs. cement vs. mortar vs. asphalt, you're not alone. Let's clear up ...

looking at it through a screen made with sand, surrounded by buildings made with concrete. I could let you guess what's in concrete, but I suspect you're already catching onto a theme here.

Our circuitous route led us through a Japanese garden. I was attracted to a large paved patio. Beneath my feet were thousands of small, rounded stones. Skilled workers created a mosaic pattern by ...