Znojmo is a major town in the South Moravian Region of the Czech Republic, the administrative capital of the Znojmo District. It has about 34,000 inhabitants. It is the historical and cultural centre of southwestern Moravia and the second most populated town in the South Moravian Region. The historic centre of Znojmo is well preserved and historically significant and is protected by law as urban monument reservation.

The town is situated on a rock outcropping on the steep left bank of the Thaya River, about 55 km (34 mi) southwest of the regional capital Brno. Located near the border with Austria, it is connected to Vienna by railway and road (about 80 minutes).

Sights include:

• The Gothic Church of St. Nicholas and the Late Gothic Town Hall tower are the most recognizable landmarks. St Nicolas Church was built in 1348 by Emperor Charles IV, and the town hall, with its 75 m (250 ft) tower, dates from around 1446.
• Overlooking the Thaya River valley, on the edge of the medieval city, there is Znojmo Castle, dating back to 11th century, founded by Premyslid dukes. The only remains of the castle used by the Premysl dukes is the Romanesque Rotunda of Saint Catherine, the interior of which is covered with 11th-century frescoes depicting biblical scenes and illustrating the life of Premysl.
• Under the town and castle is a vast labyrinth of connected passageways and cellars, Znojmo Catacombs, developed in the 14th and 15th century for defensive purposes and containing wells, drainage, fireplaces, trap doors and escapeways that led beyond the fortifications of the town. The catacombs are the largest system of underground corridors and cellars in the Czech Republic - they are almost 27 km long and up to 4 levels deep.