  This work describes a full Bayesian analysis of the Nearby Universe as traced
by galaxies of the 2M++ survey. The analysis is run in two sequential steps.
The first step self-consistently derives the luminosity dependent galaxy
biases, the power-spectrum of matter fluctuations and matter density fields
within a Gaussian statistic approximation. The second step makes a detailed
analysis of the three dimensional Large Scale Structures, assuming a fixed bias
model and a fixed cosmology. This second step allows for the reconstruction of
both the final density field and the initial conditions at z=1000 assuming a
fixed bias model. From these, we derive fields that self-consistently
extrapolate the observed large scale structures. We give two examples of these
extrapolation and their utility for the detection of structures: the visibility
of the Sloan Great Wall, and the detection and characterization of the Local
Void using DIVA, a Lagrangian based technique to classify structures.
