We love an internet mystery - and if there's one with a nostalgic '90s flavor, then that's all the better. And this strange, donated scrapbook of celebrity phots really has it all, from Angelina Jolie to Keanu Reeves.

Scroll on for the incredible pictures...

Here's where it all began.

via: Facebook

A seemingly innocuous thrift store donation in Mortsel, Belgium.

But inside was a real treasure trove.

via: Facebook

The scrapbook was stuffed full of snaps of A-listers.

Like Kevin Costner.

via: Facebook

Who was captured twice by the collector!

So cute.

via: Facebook

We love this lady's dedication!

She's clearly a Johnny Depp fan.

via: Facebook

She met the star several times over the years.

Once alongside Juliette Lewis.

via: Facebook

The photos read like a who's who of '90s celebs.

So, who is the mystery woman?

via: Facebook

She's actually been identified - and her story is rather cool.

She's called Maria Snoeys-Lagler.

via: Facebook

An she was actually quite a big deal in Hollywood - as her pictures prove!

She was a member of the Hollywood Foreign Press Association.

via: Facebook

It's basically an organization that reports on the entertainment industry - including working to put together the Golden Globes.

But as to why she donated these priceless pics?

via: Facebook

Well, that remains unknown!

But boy, did the thrift store unearth some treasures.

via: Facebook

Whoever thought there were never-before-seen images of these Hollywood icons?

Name your favorite '90s actor?

via: Facebook

And we can bet you Maria has met (and posed) with them.

And it's not just stars of the '90s.

via: Facebook

She's also met some true Hollywood icons, like Walter Matthau.

Some of these stars are still huge today.

via: Facebook

Like Liam Neeson, who's still smashing out the blockbusters.

We're a little jealous.

via: Facebook

This might be the most impressive collection of celeb-sightings we've ever seen!

The group shots are incredible.

via: Facebook

Oh, to be a fly on the wall.

Some of the pics show celebs who are no longer with us.

via: Facebook

Like this shot with the late, great Kirk Douglas.

Some pics are uber-cute.

via: Facebook

Like this snap with a young Elijah Wood - aww.

Have you ever seen a more '90s photo?

via: Facebook

Kevin Bacon and Tom Hanks?!

Except for maybe this one?

via: Facebook

Back when Hugh Grant was still a floppy-haired heartthrob.

Antonio Banderas makes an appearance, too.

via: Facebook

What's even more impressive is how many of these actors are still working today.

Truly, the mind boggles.

via: Facebook

This snap with Tim Roth is a personal fave.

The backgrounds are pretty weird, too.

via: Facebook

Why do these pictures look like a family photoshoot?

This picture is adorable!

via: Facebook

It kinds looks like Maria and Drew Barrymore were IRL pals!

It's not just actors.

via: Faceboook

Jon Bon Jovi also makes an appearance - aa '90s lit wouldn't be complete without him!

This picture's hilarious.

via: Facebook

Maria and Christopher Walken pulling the exact same face.

The list seems endless.

via: Facebook

Is there anyone Maria hasn't met?

What a cool job.

via: Facebook

We bet Maria has some serious stories to tell.

This picture surely has a story behind it.

via: Facebook

'90s Robert Downey Jr. was notoriously quite a handful.

She's even met Nicholas Cage.

via: Facebook

A '90s icon turned meme superstar.

Harrison Ford also made the cut.

via: Facebook

She's basically snapped every single '90s crush.

We're living for her facial expressions.

via: Facebook

They're hilariously ubiquitous in each pic.

Each celeb sighting is more impressive than the last.

via: Facebook

Like, Patrick Stewart?! Amazing.

Even Bruce Willis got collected.

via: Facebook

Seemingly still in costume?!

Truly, an icon.

via: Facebook

Angelina Jolie simply does not age! Fancy more nostalgic celebrity content? Scroll on for an incredible photoshop project pairing young celebrities with their current selves. It's oddly heartwarming!