Triumphal Arch, the main artery of Innsbruck's south end is the monument that was modeled according Roman style. Empress Maria Theresia was the person who gave the order to build the Triumphal Arch. The arch was built in 1765 in honor of the wedding of Leopold to Maria Ludovica of Tuscany. It expresses the joy of the marriange on one side, and the sadness of the death of Francis I on the other. The result was the Triumphal Arch in Roman style.

A triumphal arch is in the shape of a monumental archway, in theory built to celebrate a victory in war, actually used to celebrate a ruler. These structures were used from historical times in many places in the world.

Roman classical triumphal arch was a free-standing structure, quite separate from city gates or walls, but the form is often used in engaged arches as well. A triumphal arch consists of two massive piers, in its simplest form, connected by an arch, crowned with a flat superstructure or attic on which a statue might be mounted or which bears commemorative inscriptions. The structure should be decorated with carvings, notably including "Victories", winged female figures, a pair of which typically occupy the curved triangles beside the top of the arch curve.

To articulate the walls of structures, the rhythmic ABA motif that is of central arched void flanked by smaller ones was adapted in Classical architecture, particularly since the Renaissance. The voids may take the form of niches or be "blind", with masonry continuous behind.