Lier's central square is fronted by the Gothic town hall (Stadhuis), which dates from the late 16th century and is one of the best-preserved civic buildings in the province. The facade is decorated with stone pilasters and topped by a small belfry. Terrace cafes fill the square in summer, and the market on Friday mornings draws locals from the surrounding villages.
A bronze sheep — a nod to the Schapenkoppenstad nickname — stands near the Zimmer Tower, a short walk from the square. The Grote Markt is the natural starting point for exploring the old town: the Zimmer Tower, the Sint-Gummarus Church, and the Beguinage are all within five minutes' walk.