I was looking at a map of San Francisco and saw Coit Tower and thought, "Coit Tower is a lame tourist attraction."
Then: "Towers are lame tourist attractions."
"That's it? A view?"
"You can eat too…"
Idea: A tower topped with an aquarium. Maintenance would be problematic, but consider the prestige. Where else can you see a shark swimming 500 metres above the ground? Penguins in the sky!
• Ghosts [swoon]