Phobia's Beltway 8 complex is the biggest Houston haunt for visitors who measure a night by the number of houses conquered. Eight separate attractions move through machines, mind control, genetic experiments, clowns, contagion, savage landscapes, and the connected Exile trilogy. Guests can choose three-, four-, five-, or multi-house tickets and should allow roughly 15 minutes per attraction. Covered operations and the sheer variety make Phobia a full evening rather than a single walkthrough.