  Recent high-resolution observations of the central region of Galactic
globular clusters have shown the presence of a large variety of exotic stellar
objects whose formation and evolution may be strongly affected by dynamical
interactions. In this paper I review the main properties of two classes of
exotic objects: the so-called Blue Stragglers stars and the recently identified
optical companions to Millisecond pulsar.
  Both these class of objects are invaluable tools to investigate the binary
evolution in very dense environments and are powerful tracers of the dynamical
history of the parent cluster.
