There are plenty of human-made monuments that boggle the minds of even the most acclaimed scientists and archaeologists. Here are 11 such monuments that remain a mystery.
For thousands of years, humans have appreciated the sometimes-small, sometimes-bumbling bees that pollinate our crops and craft our honey. These facts will give you a glimpse into their tiny yet fascinating world.
For nearly a century, the Hollywood sign has been an emblem of the film industry. A symbol that looms this large over a town is bound to break a few expectations, so here are five things you probably didn't know about one of California's most famous landmarks.