Measurements are presented of the properties of high transverse momentum jets, produced in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=7\text{ }\text{ }\mathrm{TeV}$. The data correspond to an integrated luminosity of $35\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ and were collected with the ATLAS detector in 2010. Jet mass, width, eccentricity, planar flow and angularity are measured for jets reconstructed using the anti-${k}_{t}$ algorithm with distance parameters $R=0.6$ and 1.0, with transverse momentum ${p}_{T}>300\text{ }\text{ }\mathrm{GeV}$ and pseudorapidity $|\ensuremath{\eta}|<2$. The measurements are compared to the expectations of Monte Carlo generators that match leading-logarithmic parton showers to leading-order, or next-to-leading-order, matrix elements. The generators describe the general features of the jets, although discrepancies are observed in some distributions.