The new charges against Jeffrey Epstein have renewed questions about his private Caribbean island, which features a building that resembles a religious temple. The structure was built sometime between 2009 and 2013, but it's unclear what it's used for. The building's strange appearance has piqued the interest of online conspiracy theorists. A contractor and engineer who spoke with INSIDER highlighted an odd design anomaly: The medieval-era lock on the front door appears designed to keep people inside.