Some of the largest buildings were built to house huge aircraft and spaceships.NASA For example, and this is not surprising,
But there are some other buildings that have broken records with their amazing sizes.
From Arena Building in UK To the largest indoor water park in Germany
These are the largest buildings in the world by volume.
The largest buildings in the world
The largest buildings – Palace of Parliament, Bucharest, Romania
The Palace of Parliament in Bucharest is the largest administrative building for civilian use in the world.
It is larger than the Pentagon in the United States.
This massive 20-storey structure is 270 metres long, 86 metres high and 92 metres underground.
- eight floors of which are underground - and it contains more than 3,000 rooms, most of which are unused.
First built in 1984 as the seat of the Romanian Parliament, the palace is a mix of halls, galleries and office spaces, constructed of marble, concrete, steel, crystal and glass.
It is also one of the heaviest and most expensive buildings on Earth, weighing in at 4,098,500,000 kg.

Palace of Parliament, Bucharest, Romania
Largest Buildings – O2 Arena, London
The O2 Arena is a massive multi-purpose arena located in south-east London and has a capacity of 20,000 people.
It was built beneath the already existing and easily recognizable Millennium Dome – the largest dome in the world.
Designed by architect Sir Richard Rogers to celebrate the arrival of the new millennium in 2000.
Today, it is used as an ice rink, sports stadium, conference center, and concert venue.

O2 Arena, London
NASA Vehicle Assembly Building, Florida
NASA's Vehicle Assembly Building at Kennedy Space Center in Florida is the fourth largest building in the world by volume.
Built in 1966 to assemble rockets for the Apollo and Saturn space missions, it is the largest single-story building on Earth, and the tallest building outside an urban city in the United States.
Standing 160 metres tall and spanning 218 metres, it is more than three times the size of the building. Empire State In New York.
One of the largest American flags was painted on the exterior – which took more than 6,000 gallons of paint to complete.

NASA Vehicle Assembly Building, Florida
Mayer Werft Dockhalle 2, Germany
The Meyer Werft Dockhalle 2 in Germany is among the three largest shipbuilding halls on the planet.
It is used to build passenger ferries, research vessels, container ships and the most luxurious cruise ships from P&O to Celebrity Cruises.
It is also the largest dry dock in the world and has the fifth largest usable area of any building on Earth.
The huge shipyard is a major tourist attraction.
Where visitors can see the cruise ships during construction.
In addition, the facility includes a large number of interactive exhibits, educational films and even a simulation of a cruise cabin.

Mayer Werft Dockhalle 2, Germany
Aerium Building, Germany
Aerium in Germany is one of the largest buildings in the world, and the fourth largest building in the world by usable volume.
Located in Krausnick near Berlin, it once held the title of the largest free-standing aircraft hangar in the world, and was originally built with the intention of building aircraft.
But after several years, the Aerium was converted into an indoor amusement park known as Tropical Islands Resort.
Which broke the record for the largest indoor water park in the world.
Today, the huge indoor water park contains a large number of swimming pools that can be enjoyed at a pre-set temperature of 26 degrees Celsius.

Aerium Building, Germany
Jean Luc Lagardere Factory, France
The Jean-Luc Lagardère factory is a major industrial aviation facility located at Toulouse-Blagnac Airport in France.
It is the second largest building in the world in terms of usable area.
And here, the Airbus A380 – currently the world's largest passenger aircraft – came to fruition.
Completed in 2004, the construction of this massive facility required more than 50,000 tons of steel.
In fact, it is so large that the final assembly of the aircraft, as well as ground testing operations, can be carried out within its four walls.
In addition to the sprawling space required to produce aircraft, the facility also includes a variety of restaurants, beauty salons, a conference center and a fuel station.

Jean Luc Lagardere Factory, France
The Grand Mosque, Saudi Arabia
The Grand Mosque of Mecca, known as the Sacred Mosque, is the holiest site in the Islamic religion.
Located in Saudi Arabia, it is the largest mosque in the world, and one of the oldest as well.
With the capacity to accommodate millions of worshippers at any one time, the mosque itself is one of the largest buildings in the world.
Having been expanded several times over the years, it is now only surpassed in size by Boeing's Everett plant in the United States.
The focal point of the mosque is the Kaaba, decorated in black and gold.

The Grand Mosque / Mecca, Saudi Arabia
Boeing Plant, Washington
Boeing's Everett factory in Washington, USA, is the largest building in the world when measured by volume and usable area.
It was built in 1967 to facilitate the assembly of aircraft, specifically Boeing aircraft from the 747 through the 787.
It is so large that it uses a million light bulbs but does not need a heating system because of the 15,000 employees who work here and the very hot machines that create more than enough energy to heat the factory.
In fact, due to its large size and the level of dangerous work required, the factory has a number of safety precautions, such as its own fire station, police station, and medical facility.

Boeing Plant, Washington