Checklist time!

Good food: #France ✅ #OlympusMons ❌
Good beer: France ❌ Olympus Mons ❌
The Louvre: France ✅ (kind of) Olympus Mons ❌
High peaks: France ✅ Olympus Mons ✅
Highest peak in Solar System: France ❌ Olympus Mons ✅
Cool fossils: France ✅ Olympus Mons ❌ (probably)

Hard decision, really.