Pasadena: Stop the Bomb

4.21 (70 ratings)
Quest image more than 2
It’s up to you to prevent a nuclear apocalypse! Explore the streets of Pasadena through the eyes of the greatest minds of the 1930s to stop the biggest disaster of all. 

Discover a secret 1912 typewriter company that’s still in operation, learn the real story behind the first-ever cheeseburger, visit your favorite film locations and uncover well-kept secrets of the Crown City.


  • Can be played on
    Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday

  • During these hours
    Whole day

  • Languages

Have an unlock code?


  • Uncover the crumbling remains of an influential building that put Pasadena on the map.

  • Discover why one of the most influential Asian-inspired buildings stands in Southern California.

  • Visit the oldest bookstore in Pasadena and learn why Pasadena locals can’t stay away.

  • Find Pasadena’s well-hidden restaurants and bars in an unlikely historic spot.


It’s your first day as a janitor at Caltech and you find yourself in an abandoned lab. 

A large red button sits on a desk. Always curious, you press it. You look at the desk and see a note. 

“Tolman, this isn’t something I’m proud of but it’s the only way to defeat the Germans at their own game. This button releases a nuclear bomb. I’ve hidden eight devices around town to disarm it.” 

With the note still in your hand, you race out of the room. You must find clues to stop this before it’s too late. 

Experience's route

Starting point Vroman’s Bookstore
695 E Colorado Blvd, Pasadena, CA 91101, USA
Finish point Pasadena Senior Center Public Art Einstein & Beyond
85 E Holly St, Pasadena, CA 91103, USA

Places you will visit


It will take you

71-101 mins

You will walk

5650 steps

Total distance

4.3 km

  • Best during the day
  • Instagrammable
  • Kid friendly
  • Best for couples
People exploring Glasgow with Questo

Get the Questo app and you’re all set

Download it, choose your route and just walk to the starting point.

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Ratings and Reviews


70 ratings

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12 Nov 2023

Brandon Bui

08 Nov 2023

Joshua Cheng

08 Nov 2023


05 Nov 2023

andrew moore

03 Nov 2023

What does a Questo Experience look like?

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Nona Randois
3100 XP
Phoebe Randois
3100 XP
Nick Johnson
3100 XP