PulseDash

A wooden door in a Marietta home in Pennsylvania doesn't lead to a guest bedroom, wine cellar, or furnished basement. Instead, the door opens up into a rock-clad cave. And it's currently on the market for $297,000.

When Kenny Ortega's "High School Musical" was released 15 years ago, nobody had any idea just how popular it would be. And in the years since, it has only grown in popularity, with subsequent movies and musicals being released after the success of the first movie.

Most people may think ofChicago pizzawhen they hear the phrase "deep dish," but Ina Garten flipped that notion on its head with herdeep-dish apple pie recipe. But unlike typical deep dish dishes, Garten decided to build up rather than downwards.

Twitter's recent app update created a massive backlash when it stuck a black bar atop tweets displaying trending topics. It's ugly and intrusive, and John Gruber of Daring Fireball dubbed it #dickbar in honor of CEO Dick Costolo.

Twitter Spaces is a live audio chat feature, inspired by Clubhouse, which recently found its way to Twitter. Anyone can start a Twitter Space on their mobile app and other Twitter users can listen in or take part in the action.