Malá Strana Bridge Tower, Gothic tower at Charles Bridge entrance, Prague, Czech Republic

The Malá Strana Bridge Tower consists of two unequal Gothic towers joined by a large gate on Charles Bridge's Malá Strana bank. The lower Judith Tower, about 30 metres high, is built of opuka blocks and predates Charles Bridge; the taller sandstone tower, begun in 1464, has empty niches and masons' marks on its stones.

The lower Judith Tower is Romanesque, built in the first half of the 12th century, before the Judith Bridge it guarded; that bridge, funded by Judith of Thuringia, stood from 1158 to 1172 and was destroyed by a flood in 1342. The taller tower was begun only in 1464 under King George of Poděbrady, making it the youngest part of Charles Bridge. Both towers were rebuilt by Josef Mocker between 1879 and 1883.

The gate takes its name from Malá Strana, the left-bank quarter it opens onto; Czech mostecká věž means bridge tower. The only carved relief here is a late Romanesque opuka stone panel in the lower tower's first floor, showing one seated figure and one kneeling before it, perhaps Emperor Frederick Barbarossa handing the royal crown to Vladislav I. Its subject and author remain unknown.

The towers stand at the Malá Strana end of Charles Bridge, at the start of Mostecká Street on the royal route. The interiors are closed to the public and open only for occasional guided tours, so the gate is normally seen from the bridge and the street. The taller tower's empty statue niches face east and west.

The smaller tower was never torn down after the taller one was built beside it, even though the two belong to completely different periods of construction. Standing next to each other, they look like a matching pair but are actually centuries apart in age.