High appeal tiles

[Bosque]

I just finished a game as Hungary. I had a National Park with no mountains or natural wonders. It was just a swath of woods along a river. But with both the Eiffel Tower and the Golden Gate Bridge, one tile had a Breathtaking appeal of 13.

That's the highest I have seen in any of my games. Have any of you seen a higher appeal tile than that?

 

[Victoria]

I have not seen higher in game.
I cannot remember the theoretical limit but can get to 25 in my head but that’s a perfect tile, perfect civ, perfect wonders and perfect GP
+13 is a very pretty tile.

 

[Gloompy]

No. What does appeal do?

 

[Ivan Hunger]

No. What does appeal do?

The appeal of a tile gives extra housing to neighborhoods, extra tourism to national parks, and extra tourism and gold to seaside resorts built on that tile. The housing and gold is useful for everyone, and the tourism is important for any player seeking a cultural victory. There's also a pantheon belief that improves tiles with high appeal.

Certain civs have unique interactions with appeal. Australia has districts that produce more yields on tiles with high appeal, and the Mapuche have a unique improvement that produces culture based on the tile's appeal.

 

[Victoria]

The Alcazar improvement for example gives +2 culture and half the appeal of the tile as science.
The OP one is the public transport tile. If you replace a farm tile with a neighbourhood you immediately (before completing it) get 100*tile appeal value in gold.
Seaside resorts give tourism based on appeal of the tile, ski resorts, gold courses, national parks, all similar.