Rearrangeable 3D Bar Chart

A modular physical visualization like this rearrangeable 3D bar chart allows people to sort, filter, compare and examine data by direct physical manipulation.

Sources:

1. Yvonne Jansen and Pierre Dragicevic (2013) An Interaction Model for Visualizations Beyond the Desktop.
2. Also see Yvonne Jansen's PhD dissertation on Physical and Tangible Information Visualization (2014)