It was the first Olympic Opening Ceremony ever held in the streets of a city centre.

Buenos Aires 2018 showcased a spectacular history-making Youth Olympic Games Opening Ceremony ahead of the start of competition.

It was the first time any Olympic Opening Ceremony has been held in the streets of a city and free to the general public to attend, away from a traditional stadium.

The focal point was the Buenos Aires Obelisk, in the middle of the city's 9th of July Avenue (Avenida 9 de Julio).

And it was an incredible setting for an unforgettable evening! These were the top moments:

The fans

The open nature of the Opening Ceremony provided a chance for the public of Buenos Aires to get up close to the Games — and they certainly took advantage of it!

Over 200,000 people filled the streets of Argentina's capital city to take in the sights and sounds.

The athletes

It wouldn't be an Olympic Opening Ceremony without the athletes.

In keeping with the spirit of the YOG, all the athletes entered the 9th of July Avenue at the same time rather than by national order.

Of course, there was still a flag parade, with the loudest cheers reserved for the host country Argentina.

Gravity? What's that?

The Obelisk walls were transformed into an athletics track, a road cycling course, and even a rowing lake, with acrobats 'racing' each other up the famous monument. New YOG sport roller speed skating was also given the special effects treatment.

Safe to say it's not for those with a fear of heights!

The Games are open!

One of the most-awaited moments of any Opening Ceremony is the arrival of the Olympic Torch and the lighting of the Olympic Cauldron.

And who better to be the final torchbearers than Argentina's Rio 2016 Olympic champions Paula Pareto (judo) and Santiago Lange (sailing).

Pareto is the first woman to win an individual Olympic gold medal for Argentina, while Lange beat lung cancer to finally clinch an Olympic title in his sixth Games.

In a nod to Buenos Aires 2018 being the first gender-equal Olympic event, both Pareto and Lange lit the cauldron together.

Check out a selection of the night's best pictures:

Don't forget, the Olympic Channel will be streaming the Youth Olympic Games every day until the end of the Games on 18 October. A full sport-by-sport streaming schedule is available HERE.

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