1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
Unofficial, it could be pyramids.
Wouldn’t the pyramids be a building tough?
I guess they could be, I was thinking they were tombs though, hence not buildings.
Is it more than 5 stories tall?
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
hmm, good point. wonder if things like Statue of Liberty, Washington Monument, Eiffel Tower would be considered buildings or monuments or both?
I was thinking along the lines of an amusement park, possible specific, possibly generic, anyone else thinking that direction?
Is it unique?
Is it a monument?
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
12 - (soyleche) Is it unique? Yes.
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
12 - (soyleche) Is it unique? Yes.
13 - (urysohn) Is it a monument? Yes.
Is it in the USA?
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
12 - (soyleche) Is it unique? Yes.
13 - (urysohn) Is it a monument? Yes.
14 - (urysohn) Is it in the USA? No.
Unofficial:
What do we have? Eifel Tower, the christ statue in Rio, Pyramids (although I’m not sure how “unique” any one of them would be). Would the Taj Mahal be tall enough?
Also unofficial, eiffel tower, arc de triomphe, so many options 
Is it in Eurpoe
Unofficial: Not just the pyramids of Giza, but there’s also the Sphinx. Does that have more than 5 stories?
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
12 - (soyleche) Is it unique? Yes.
13 - (urysohn) Is it a monument? Yes.
14 - (urysohn) Is it in the USA? No.
15 - (Yankeetripper) Is it in Europe? Yes.
Is it symmetric
1 - (Kerfluffles) Is it found inside a home? No.
2 - (soyleche) Is it alive? No.
3 - (John.S.Mill) Can a person get inside it? Yes.
4 - (JFG) Is it mobile? No.
5 - (Celalta) Is it man made? Yes.
6 - (John.S.Mill) Is it smaller than a school bus? No.
7 - (John.S.Mill) Is it a building? No.
8 - (Yankeetripper) Would it be considered a tourist attraction? Yes.
9 - (John.S.Mill) Is it on land? Yes.
10 - (Kerfluffles) Is it a roller coaster? No.
11 - (soyleche) Is it more than 5 stories tall? Yes.
12 - (soyleche) Is it unique? Yes.
13 - (urysohn) Is it a monument? Yes.
14 - (urysohn) Is it in the USA? No.
15 - (Yankeetripper) Is it in Europe? Yes.
16 - (John.S.Mill) Is it symmetric? Yes.