  We find candidate macroscopic gravity duals for scale-invariant but
non-Lorentz invariant fixed points, which do not have particle number as a
conserved quantity. We compute two-point correlation functions which exhibit
novel behavior relative to their AdS counterparts, and find holographic
renormalization group flows to conformal field theories. Our theories are
characterized by a dynamical critical exponent $z$, which governs the
anisotropy between spatial and temporal scaling $t \to \lambda^z t$, $x \to
\lambda x$; we focus on the case with $z=2$. Such theories describe
multicritical points in certain magnetic materials and liquid crystals, and
have been shown to arise at quantum critical points in toy models of the
cuprate superconductors. This work can be considered a small step towards
making useful dual descriptions of such critical points.
