Tromostovje (Triple Bridge), Ljubljana (must see)

The Triple Bridge consists of three bridges spanning the Ljubljanica River and linking the medieval centre with Prešeren Square. A wooden crossing was recorded here as early as 1280. It was replaced in 1842 by a stone bridge designed by the Italian architect Giovanni Picco and dedicated to Archduke Franz Karl of Austria who was the father of two emperors: Franz Joseph I of Austria and Maximilian I of Mexico. He was also the paternal grandfather of Archduke Franz Ferdinand of Austria, whose assassination led to the outbreak of World War I. A Latin inscription honouring the archduke can still be seen above the bridge’s central pier.

By the early 20th century, the central bridge had become a traffic bottleneck. Architect Jože Plečnik solved the problem without demolishing the historic structure. Between 1929 and 1932, he added two slightly angled pedestrian bridges beside it, allowing vehicles to use the middle crossing while people walked safely along the sides. Cross the bridge into Prešeren Square and look back to appreciate how Plečnik’s two side bridges fan out at subtle angles, creating a unified gateway across the river.

Plečnik removed the central bridge’s heavy metal railings and gave all three crossings matching concrete balustrades containing 642 balusters. Decorative lamps, trees, and carefully arranged paving further unite the separate structures. Plečnik also incorporated practical urban features into the surrounding design, including a small flower kiosk near the bridge.

That is not all. The side bridges come with a surprise. Walking along their outer sides brings you to the concrete balustrades and stone staircases that curve gracefully down to the lower riverside terraces.

The crossing is now a natural gathering place surrounded by cafés, historic façades, and markets. Street musicians and public events frequently animate the area, while boats pass beneath the stone arches. Views extend towards Castle Hill, nearby churches, and the riverfront. The Triple Bridge forms part of the UNESCO-listed collection, recognised for transforming bridges, markets, squares, and embankments into connected public spaces.