Disney has revealed a new themed map installed next to Stormalong Bay at Disney’s Yacht Club and Beach Club Resorts.

However, the iPhone’s built-in magnetometer does allow apps to locate metal wall studs, nails, screws or any ferromagnetic material—meaning it also won't work on some types of stainless steel.

A history enthusiast's map study led to the discovery of a likely medieval monastery in Sweden, according to local officials. The ruins were found by using ground-penetrating radar.