In Germany, in the area of Frankfurt's RhineMain Airport, was completed the construction of the Germany's largest building and one of the world's largest commercial properties - The Squaire (a new word that combines "square" and "air"). The Squaire has a length of 660 meters, 9 floors and the area of 140.000 square meters. The construction cost has already exceeded one billion Euros, despite the initial estimated cost of € 660 million and planned building commission in 2009. The spectacular building designed by star architect Helmut Joos, who made the appearance of the building similar to the glazed whale. The Squaire stands on 240 pillars such that nowhere does the structure touch the ground. Inside the huge building are located 2 Hilton hotels with 580 rooms, a large medical center, supermarket, shops, boutiques, restaurants and numerous offices, and also three atriums flooded in natural daylight and with lot of leisure space. The Squaire is a trailblazing business concept and a New Work City offering work, mobility, healh care and life under a single roof.

According to the developer of the project, IVG (Immobilienkonzern IVG) Bonn real estate concern, about 66% of the space is already leased. Office rental space prices in this building are up to € 30 per 1 square meter, while a maximum price of rent in Frankfurt is € 35 and the average in the city is about € 20. The principal tenant of the office space has become the KPMG accountancy, which rented 33 thousand square meters of office space and planning to move its European headquarters to Frankfurt.

The international airport of Frankfurt-am-Main is one of the largest in Europe. It takes the third place in passenger traffic, after Heathrow of London and Charles de Gaulle of Paris, and is the second largest cargo, after Charles de Gaulle.