Hilton has announced the opening of two new properties in a landmark development at Frankfurt Airport.

The hotels are part of the new SQUAIRE building, a huge center built within Frankfurt’s Airport, continental Europe’s second-busiest terminal.

Comprising a five-star Hilton and a three-star Hilton Garden Inn, the chain’s new developments offer a total of 583 rooms.

Designed by JOI Design, the name behind the Ritz-Carlton Wolfsburg, the Hotel Vier Jahreszeiten by Kempinski in Munich and the Swissotel Düsseldorf, both share the same mobility theme as the rest of the SQUAIRE development, Hilton said.

The five-star Hilton includes 249 rooms, an all-day restaurant, and a lounge and bar in the atrium of the property, along with leisure facilities including a fitness center, steam room and sauna.

The hotels are something of a feather in the cap for SQUAIRE, which sits above Frankfurt Airport’s rail station and also includes shops and restaurants.

Suspended on 86 pillars, the train-shaped building measures 660 meters long and ‘floats’ above the long-distance ICE (Inter-City Express) tracks of Frankfurt Airport’s station, earning it descriptions such as “an over-sized ICE”, “a long spaceship” and “a gigantic airplane fuselage.”