It has a remarkable dome, which is the largest unreinforced concrete dome in the world.
Originally known as the Millennium Dome, this is one of the largest and most modern round structures.
Designed by Frank Lloyd Wright, this famous museum is known for its unique round shape and spiral ramp.
Known for its retractable roof, the Mercedes-Benz Stadium has a circular design.
This iconic Islamic shrine is one of the oldest and most beautiful round buildings in the world.
– A famous observation tower with a round design at the top, offering panoramic views of the city of Calgary and beyond.
One of the tallest freestanding structures in the world, the CN Tower features a circular observation deck and is a major landmark in Toronto.