The Töpper Bridge over the Ybbs River is located near Kasten and is a historic structure on the popular Ybbstal Cycle Path. It was built in 1855 by industrialist Andreas Töpper, a prominent patron of the region. The bridge is decorated with elaborately crafted Mariazell cast iron figures, including Saints John of Nepomuk, St. Florian, Empress Helena, and St. Andrew the Apostle. A large crucifix sits in the center. After a catastrophic flood in 1861 destroyed the original bridge, it was immediately rebuilt in its current form.
The bridge is located directly on the Ybbstal Cycle Path, a well-developed cycle path on the former route of the Ybbstal Railway between Waidhofen an der Ybbs and Lunz am See. The path is paved, signposted throughout, and offers charming scenery with river, forest, and mountain backdrops. The Töpper Bridge is a popular place for breaks and photo stops, not only because of its historical significance, but also because of its contrast with the surrounding nature: The dark iron figures on the simple stone bridge stand strikingly above the clear waters of the Ybbs River.
The bridge is easily accessible on foot or by bike, and there is a small parking lot right next to it. It is a striking example of the connection between industrial history, art, and nature and is considered one of the architectural highlights along the Ybbstal Cycle Path.