  Massive stars drive strong winds that impact the surrounding interstellar
medium, producing parsec-scale bubbles for isolated stars and superbubbles
around young clusters. These bubbles can be observed across the electromagnetic
spectrum, both the wind itself and the swept up interstellar gas. Runaway
massive stars produce bow shocks that strongly compresses interstellar gas,
producing bright infrared, optical and radio nebulae. With the detection of
non-thermal radio emission from bow shocks, particle acceleration can now also
be investigated. I review research on wind bubbles and bow shocks around
massive stars, highlighting recent advances in infrared, radio and X-ray
observations, and progress in multidimensional simulations of these nebulae.
These advances enable quantitative comparisons between theory and observations
and allow to test the importance of some physical processes such as thermal
conduction and Kelvin-Helmholtz instability in shaping nebulae and in
constraining the energetics of stellar-wind feedback to the interstellar
medium.
