Only if you don’t have a fear of heights do you want to visit the CN Tower. But if you can muster the will to take a trip to the top it will definitely be worth it. The CN Tower is Toronto and Canada's most recognizable and celebrated icon and is the centre of tourism in Toronto.

It is the tallest building in the world; on a clear day, the view is impressive. Each year, around 2 million people take the elevator ride to the top of the tower to take in the breath-taking view at the top of the world. Once you are at the top, see if you can muster up the courage to walk across the see-through glass floor.

The CN Tower has added a new attraction this year that could make bungee jumping look like a walk in the park.

The tower’s new EdgeWalk allows thrill-seekers to stroll outside on the world-famous tower on a 1.5 metre ledge that rings the main pod 356 metres (1,168 feet) above the ground.

Opened in August, this walk of wobbly knees sends groups of six to eight people out on the ledge where they walk hands-free while attached to an overhead safety harness.

During the walk, specially trained guides encourage visitors to push their personal limits, even allowing them to lean out 116 storeys above the city.

The EdgeWalk costs $175. While that may be pricey, CN Tower staff say it costs walkers their lives.