The possibility that we live in a special place in the universe, close
to the center of a large void, has been established as a viable
alternative interpretation of the acceleration of the universe compared
to the standard Lambda-CDM model with a dominant dark energy component.
In this talk I will introduce void models, and show how it be tested
against the full range of modern cosmological observations, and how the
model in itself is a useful tool to learn about inhomogeneities on a
smaller scale.
Not only has it been confronted with observations of the geometry of the
universe, such as Type Ia Supernovae, Cosmic Microwave Background and
Baryon Acoustic Oscillations data, but also we are slowly learning how
to predict the large-scale structure in such a model, and specifically I
will report on a new set of N-body simulations of Giga-parsecsized voids.
