Normally the same color as the street light, the Bartle Hall Sky Stations turn blue in honor of the Kansas City Royals.

From Wiki: "Bartle Hall crosses above Interstate highway I-670 suspended by steel cables supported by four 335 feet (102 m) tall concrete pylons. This pylons are crowned by sculptures designed by artist R.M. Fisher, called "Sky Stations". The different, aluminum, installation pieces are between 20 feet (6.1 m) and 25 feet (7.6 m) tall. The pylons and sculptures are dramatically lighted at night."