Watch: Inside look at Sphere as UFC 306 takes over

In the months leading up to the UFC's inaugural event at Sphere in Las Vegas on Saturday night, Dana White and Co. were tight-lipped about what the venue would look like. But the first videos from UFC 306 are here.

UFC 306 is the first live sporting event to take place at Sphere, a state-of-the-art arena that opened last fall at a cost of $2.3 billion. Sphere boasts a 160,000-square-foot interior LED display, which can be seen below:

UFC 306, which is also branded as Noche UFC, celebrates Mexican Independence Day and features several Mexican fighters, including women's flyweight champion Alexa Grasso. A series of short films will be shown throughout the pay-per-view broadcast to tell the history of Mexican combat sports.

Here's a look at Sphere during the first fight between Raul Rosas Jr. and Aoriqileng:

Here's what the broadcast looked like during the opening matchup:

A different look at Sphere was shown Saturday morning on "Good Morning America":

A hologram of UFC CEO White welcomed fans in the venue lobby: