Collection of videos presented at the Third European Congress of Mathematics in Barcelona, Spain, held in July 2000. Includes: 1. Multicoulored Fractals (4 minutes) by Marina Langer, 2. Quadro - A Compact Soap Bubble of Genus 4 (2000, 2 min.) by Konrad Polthier and Klaus Thomas, 3. The Optiverse (1998, 7 min.) by John Sullivan, George Francis and Stuart Levy, 4. Distorted Space (2 min.) by Sachiko Tsuruno, 5. excerpt from " Platonic Solids " (2000, 3 min.) by Michele Emmer, 6. Polytope Sections (4 min.) by Russell Towle, 7. Geodesics and Waves (1997, 5 min.) by Konrad Polthier, Markus Schmies, Martin Steffens and Christian Teitzel, 8. Numerical Simulations of Unstable Detonations (4 min.) by Thomas Gessner, 9. CMC - Pictures of Constant Mean Curvature Tori (1996, 4 min.) by Matthias Heil, 10. On Gergonne ’s Surface (1999, 1 min.) by Konrad Polthier and Klaus Thomas, 11. Knot Energies (1998, 3 min.) by John Sullivan, 12. From " Soap Bubbles " (1998, 3 min.) by Michele Emmer, 13. Interpolation of Triangle Heirarchies (1998, 8 min.) by Axel Friedrich, Konrad Polthier and Markus Schmies, 14. Surfaces, Flows & Holonomy (1999, 18 min.) by Nicholas Schmitt, and 15. The Dynamics of the Rabbit (1997, 25 min.) François Tisseyre and the Association EcoutezVoir. Study guide available.