Křižíkova fontána, Musical fountain in Prague Exhibition Grounds, Czech Republic.

Křižíkova fontána is a large water fountain on Prague's Exhibition Grounds featuring thousands of water jets and colored lights. The system coordinates water movements, music, and illumination into synchronized visual sequences.

František Křižík built the fountain for the Jubilee Provincial Exhibition, lighting it on 24 May 1891; evening shows ran daily from 28 May. A 150-metre passage under the basins led to the engine room housing the pump. The 1991 General Czechoslovak Exhibition brought a reconstruction and an amphitheatre for over 6,000 spectators.

The fountain stages performances with works by Dvořák, Smetana, and Vivaldi as well as ballet adaptations like Swan Lake. Visitors witness how music and water choreography combine to create a shared emotional experience.

The fountain sits behind the exhibition pavilions on the Prague Exhibition Grounds in Bubeneč, with seating arranged as an amphitheatre for 6,000 spectators. In season three different 40-minute shows run daily, each starting on the hour from 20:00. The fountain is currently out of operation, so check before planning a visit.

The lower and upper basins had thick glass bottoms, beneath which adjustable arc lamps with parabolic aluminium reflectors lit the jets. Coloured glass above the lamps was changed by hand at regular intervals to tint the water, and the glow could be seen from the Old Town.