Neidhart Fresken

This museum houses a collection of artifacts from the Roman settlement of Vindobona, as Vienna was then known. There are Roman ruins in the cellar of the museum, first discovered during construction work in 1948, and for many years only accessible to the public via a narrow staircase, before the building was transformed into a full-fledged museum 2008.

A second branch of the Jewish Museum on Dorotheergasse. Underneath the Judenplatz (the Jewish Square) is an underground medieval synagogue excavation. Amazingly, the synagogue was destroyed centuries ago, but its existence was remembered by the area's inhabitants up to the 20th century.

A collection of 3000 clocks of all types, including a prized 18th-century astronomical clock.

The church is believed to date back to the Middle Ages, and excavations suggest that the foundation may be far older than previously believed. The current structure was built during the Baroque period, and restored from 1998-2004 to return the paintings to their original colouring and brightness. There are regular organ concerts at 15:00 (free).

A large 4-m-diameter musical clock on a pedestrian bridge connecting two neighboring buildings. The clock was designed between 1911 and 1914 by the Judgenstil painter Franz Matsch, and features prominent figures from Viennese history, each with a Roman character. At noon all figures parade across the clock face, accompanied by music. During the Advent season, Christmas songs are played daily at 17:00 and 18:00.

Early Roman ruins from Vienna's earliest days as a Roman fort in the basement of the Fire Brigade Building.