Ostankino Tower in Moscow, Russia

About the Ostankino Tower

Located in the Ostankino district of Moscow, Ostankino Tower was built to commemorate the 50th anniversary of the October Revolution in Russia. Ostankino Tower is a radio and television broadcast tower and also a major tourist attraction with an observation deck.

In August 27, 2000, Ostankino Tower was badly damaged in a fire that killed three people. Ostankino Tower was later renovated. 

Location: Moscow, Russia
Construction Type: Concrete
Architect: Nikolai Nikitin
Year: 1963-1967
Height: 540 meters / 1,772 feet

CN Tower, Toronto, Canada

Tall Towers: CN Tower, Toronto Canada

The American Society of Civil Engineers calls the CN Tower in Toronto, Canada one of the modern Seven Wonders of the World.

The CN Tower was built by the Canadian National Railway to provide a major TV and radio communication system for Toronto, Canada. Ownership of the tower was transferred to Canada Lands Company, a real estate development corporation, in 1995. The name CN Tower now stands for Canada's National TowerCanadian National Tower. However, most people simply use the abbreviation, CN Tower. instead of At the center of the CN Tower is a hollow, hexagon-shaped concrete pillar with electrical lines, plumbing, stairwells, and six elevators. At the peak is a 102-metre (334.6 ft) tall antenna that broadcasts TV and radio signals. The main support pillar for the CN Tower was constructed by hydraulically raising a large metal platform from the base. A helicopter erected the antenna in 36 sections. 

Location: Toronto, Canada
Construction Type: Concrete
Architect: John Andrews Architects with WZMH Architects
Year: 1976
Height: 553.3 meters / 1,815 feet