Related Clues:
- Puzzle of perplexing paths
- Kiddie place mat feature
- Challenge for a rat
- Hampton Court attraction
- Child's puzzle
- Rat's challenge
- Lab rat's course
- Convoluted path
- It has many decision points
- Lab testing area, sometimes
- Activity book puzzle
- Way-out puzzle?
- Blind alley site
- Part of a lab experiment
- Construction financed by a hedge fund?