Hello, Detective!

Ready to explore Hanoi?

Become a true Street Sleuth — solve riddles at hidden Hanoi locations.

Start your investigation

All routes

Lost Sword Trail
Easy
Follow the Golden Turtle's clues around Hanoi's beating heart
60 min · $1.99
Opera House Secrets
Medium
Case #017 — Seven clues left by a vanished architect
75 min · $2.39
Long Bien Chronicles
Hard
Case #032 — Don't read the history. Read the bridge.
90 min · $2.79