There’s nothing like a random and interesting fact to keep a circle of friends entertained. And if you’re on the lookout for some juicy facts that will entertain your buddies, we’ve got just the thing for you. So, here’s a list of unusual and interesting facts that you can share with your loved ones. Enjoy!

686/701
IBM Simon (1994): first smartphone with calls, email, touchscreen—but too expensive, bad battery.

The first true smartphone is often credited to the IBM Simon, which IBM built and BellSouth sold in 1994. It already combined phone calls, email, fax, apps, and a touchscreen, but its high price and roughly one-hour battery life helped keep it from taking off.

685/701
Seoul removed a highway, restored a stream, and cooled the area 3.3–5.9°C by swapping concrete for nature.

Seoul removed the highway over the Cheonggyecheon stream and brought the water back. Case-study data found the area along the stream was about 3.3 to 5.9°C cooler than a nearby parallel road, showing how replacing concrete with water, trees, and better airflow can cool a city fast.

684/701
In Utrecht, people press an online fish doorbell to alert lock operators when fish wait upstream.

In Utrecht, the Netherlands, people can watch a live underwater camera and press an online fish doorbell when they spot fish waiting at a lock. That alert helps the lock keeper know fish are there, and the lock is opened when enough fish are waiting so they can keep moving upstream.

683/701
Samsung dismissed Android, then Google bought it and won mobile.

Before Google bought Android in 2005, Android’s founder pitched Samsung on buying or funding it. Samsung executives passed and mocked the idea. Soon after, Google acquired Android and turned it into today’s Android OS.

682/701
$8 Goodwill NES Stadium Events flipped for $25K online.

Jennifer Thompson spotted ultra-rare NES game Stadium Events at Goodwill and bought it for $8 despite having just $30 in her account. She knew it was valuable from collector forums. A game store offered all their register cash, but she declined and sold it online for $25,000—a massive windfall.

681/701
Gruen envisioned malls as walkable towns—stores plus civic services and homes.

Victor Gruen, who made the very first shopping malls, dreamed they would be like little towns! He wanted stores mixed with homes to live in, libraries for books, green parks, post offices, doctor offices, and more—all in one happy place where people could walk and hang out.