The project aims to evaluate an immersive virtual reality system for visual exploration of global data. Visual exploration of maps often requires a contextual understanding at multiple scales and locations. Multiview map layouts, which present a hierarchy of multiple views to reveal detail at various scales and locations, have been shown to support better performance than traditional single-view exploration on desktop displays. We created a virtual reality system, named immersive multiview maps, that allows for visual exploration of global data across geographical and temporal scales.