High In The Sky Seuss Trolley Train Ride is a track ride in Seuss Landing at Universal's Islands of Adventure. It's worth seeing on a time-permitting basis. The minimum height to ride is 34 inches.
The High in the Sky Seuss Trolley Train ride debuted on the tracks above Seuss Landing in 2006. But the tracks had been there since the park's opening, originally designed for a ride called "Sylvester McMonkey McBean's Highly Unusual Driving Machines." But problems with the unique ride system prevented that attraction from opening, leading to a rebuild that yielded the Trolley Train Ride. The ride features two tracks, featuring different scenes from Dr. Seuss books, as the trolleys drive above the rooftops of the land, offering grand views of the park beyond.