It is peak summer, the stretch where the light hangs around past nine and a surprising amount of the good stuff this weekend costs exactly nothing.

Butler Street turns into a sixteen-block art party on Saturday, there is a free reggae show up in Riverview Park, and a beer garden pops up in Schenley on Friday.

Downtown, a Tony-winning musical runs all weekend, and Sunday night the Black Keys roll into Stage AE. Pace yourself, drink water.

In today's What's On Pittsburgh:

Let's get to it. - Madison Johnson

🎭 Once On This Island plays the O'Reilly Theater downtown Friday through Sunday, Pittsburgh Public Theater staging the Tony-winning musical about a peasant girl, a storm, and the gods who keep meddling in both.

🎉 SlimeCityCon takes over the David L. Lawrence Convention Center on Saturday and Sunday, an all-ages sensory-play convention with DIY slime stations, fidget vendors, and some of the biggest slime makers in the country under one roof.

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A free pop-up beer garden lands at the Schenley Park Visitor Center with a rotating local food vendor and live music, and no ticket to fuss with.

Our Lady of Grace throws its parish food festival with international booths, Lebanese, Vietnamese, Indian, Polish, Italian and American, plus live bands to work through it all Friday night.

Independent artist studios throw their doors open downtown for a free Final Friday, the work on the walls and the people who made it standing right beside it.

Butler Street becomes a sixteen-block street party with more than two hundred artists, forty-five stops, and seventy-five bands, all of it free and running rain or shine.

A free all-day reggae fest up at Riverview Park on the North Side, Caribbean food and craft beer and DJs rolling into The Meditations headlining after seven. Bring a lawn chair.

The former church turned Millvale music hall opens up after eleven for a real paranormal investigation, eighteen and over, if your nerve holds.

Kids grab nets and magnifiers for a guided bug hunt and hike through the Pleasant Hills Arboretum, part scavenger hunt and part science lesson.

The Ohio blues-rock duo brings its Peaches 'n Kream tour to Stage AE on the North Shore, with Eddie 9V opening the night.

A night of horror on the big screen at the Harris Theater downtown, the Cultural Trust's little cinema leaning all the way into the creepy.

The art museum's grounds fill with vintage sellers, upcycled finds, handmade goods and local makers, worth the drive out to Greensburg for a slow Sunday browse.

🍸 City Paper's food column rounds up the week's Pittsburgh food news, including a Hidden Harbor tiki pop-up setting up in East Liberty.

🎶 Citizens Live at the Wylie gave a first peek inside the Hill District's new Live Nation music venue, still under construction.

🃏 NEXTpittsburgh went inside an Observatory Hill house that, as the story goes, was won in a card game for a single dollar.

⚾ The Pirates roughed up former Pirate Jameson Taillon so thoroughly the Cubs designated him for assignment the next day.

🌉 The Parkway East and the Commercial Street Bridge reopened after a seventeen-day closure, so that stretch of the commute is whole again.

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