With the first step you take into downtown San Francisco, you immediately know it's Dreamforce week. Last week, thousands of Trailblazers took over for lots of learning, fun, and giving back. Here are the top 21 photos that showcase what Dreamforce is all about.

Salesforce Chairman and CEO Marc Benioff took the stage, after a traditional Hawaiian blessing, to deliver his keynote. Missed the keynote? Get all the highlights here.

Cuddly photo with Astro? Check. Trailbazers in the Dream Valley snapped some photos with our characters!

Lighted and delighted: This Trailblazer is totally aglow.

Looks like these two Trailblazers are ready to roll for some learning!

Our hundreds of Dreamforce ambassadors and docents helped to guide people to find sessions and where to get a cup of coffee.

Sylvia Acevedo, CEO of Girl Scouts of the USA, attended the Salesforce Women's Networking Event the evening before Dreamforce.

Taking a moment of quiet reflection in the Dream Valley with coffee is a mindful way to start the day at Dreamforce.

Learning is endless at Dreamforce, but so are laughs.

Dreamforce was thrilled to welcome back the monastics from Plum Village. Guided meditations and walking meditations were available for those seeking mindfulness throughout the week.

What's better than a hug? An Astro hug!

Ashton Kutcher delivered an emotional talk at Dreamforce. Kutcher discussed what prompted him to co-found Thorn, which partners across several industries to fight trafficking and the exploitation of children with the power of technology. If you missed this incredible discussion, watch on Salesforce LIVE.

Coolest place to watch the keynote? In the Dream Valley!

In between sessions, keynotes, and Dream Valley band performances, adventurous Trailblazers opted for some rock climbing.

SaaSy. Selfies. Enough said.

Joyous dancing in the Dream Valley is a rite of passage at Dreamforce.

Trailblazers stuffed backpacks for nonprofits in the Dream Valley.

Sarah Franklin, SVP and GM Trailhead; Salesforce Chairman and CEO, Marc Benioff; and Ginni Rometty, Chairman, President, and CEO of IBM, toured the Trailhead Zone in Moscone West.

We rocked out with Lenny Kravitz in the Dreamfest in AT&T Park.

Students explored the Trailhead Zone in Moscone West.

Academy Award-Winning actress Natalie Portman discussed the gender pay gap and inequality in Hollywood during our Equality Summit.

Parker Harris, Co-Founder and CTO, Salesforce, and Salesforce Chairman and CEO, Marc Benioff discussed the latest customer innovations during the main keynote.

Thank you Trailblazers for making Dreamforce '17 so special. We can't wait to see you at Dreamforce '18!