World's 5 Mega Construction Projects - as part of the travel series by GeoBeats.

Around the world, we keep building structures that are taller and bigger than the existing ones. Here are 5 current mega constructions projects.

Number 5 is the Kingdom Tower in Saudi Arabia. Upon its expected completion in 2017, it will have an approximate height of 3,280 feet, making it the tallest building in the world. With a budget of nearly $1.2 billion, the tower will have more than 160 floors, including apartments, office space, and condos.

Number 4 - The Falconcity of Wonders in Dubai. With an area of 400,000 sq feet, this mega construction project would host the replicas of 7 wonders of the world such as Taj Mahal, Effiel Tower, and The Great Wall. In addition, it will feature a theme park, educational institute, sports facilities, and approximately 5,500 residential units. The project is expected to complete between 2015 and 2017.

Number 3 is the Shanghai Tower in Shanghai, China. Upon its completion in 2014, this 2074 feet structure would be the second tallest building in the world. The 121-story tower will have plenty of dinning, entertainment, and office space options. The mega construction project has a budget of $1.9 billion.

Number 2 is the Crystal Island in Moscow, Russia. With an approximate height of 1500 feet, this 'tent-like' structure will comprise of apartment buildings, hotel, office.