The Henry Wollman Block Fountain is located within a median between the Union Station building and Liberty Memorial Park. A linear expanse of grass is the base over which the Henry M. Block water expression is placed.

An elliptical plane of black granite is coated with a veneer of water, resulting in a highly reflective mirror that visually floats in the center of the expanse of green. This water plane, reflecting the surrounding architecture of the Union Station building and the Liberty Monument, also responds to wind, creating ripples of delicate movement that wash across its surface.

Centered in the plane is a circular, white granite island that hovers just above the water skin. This circular disk is the focus of the work, a platform from which a vibrant, vertical water display is expressed. Small openings penetrate the granite disk in the form of a series of concentric rings from which white light and choreographed water plumes genesis.

In concert, hundreds of pulsing water jets emit from the disk in patterns that range from delicate and tranquil to monumental. The differing water choreographies address a variety of conditions at the site. The feature can be choreographed to transform in character from quiet and passive, to grand and elating for special occasions and holidays. The work can emphasizes and punctuate moments in each day.

After dark, visitors to Union Station enjoy a luminous, evening expression. White light vibrantly illuminates the vertical water columns, resulting in an engaging and elating nighttime water event.