These are the only Lego sets my 10 y/o has been interested in for the past several years now.  After Christmas he will have the following:

 

21000 - Sears Tower (gets his OCD honestly)

21000 - Willis Tower

21001 - John Hancock Center

21002 - Empire State Building

21003 - Seattle Space Needle

21004 - Solomon R. Guggenheim Museum

21005 - Falling Waters

21006 - The White House

21007 - Rockefeller Center

21008 - Burj Khalifa

21009 - Farnsworth House

21010 - Robie House

21011 - Brandenburg Gate

21012 - Sydney Opera House

21013 - Big Ben

21014 - Villa Savoye

21015 - Leaning Tower of Pisa

21016 - Sungnyemun Gate

21017 - Imperial Hotel

21018 - The UN Building

21019 - The Eiffel Tower

21020 - Trevi Fountain

21021 - Marina Bay Sands

21050 - Lego Architecture Studio

 

And I'm sure he'll be asking for/purchasing these 2015 sets when they are available:

 

21022 - Lincoln Memorial

21023 - Flatiron Building

 

 

 

Anyway, last night I was searching eBay for something completely unrelated and saw there is a Billund Airport and The Lego House available in Denmark.  At least I'm assuming that's where these are available, unless I'm overlooking something online.  Does anyone know if there are any other sets like this that are architecture related?

Well, now I'm wishing I hadn't looked a bit.  

 

I found several with set numbers in the 4000000's, many of which are employee sets.  Then I also saw The Lego Retail Store 3300003.

 

Is there anywhere that has a really good listing of any sets like these also?

In Australia limited range in some stores, these sets are in your list. At one point the National Gallery had everything and they were all moved on. 

I found several with set numbers in the 4000000's, many of which are employee sets.  Then I also saw The Lego Retail Store 3300003.

21024-1: Louvre - Not released yet.  From what I have seen your list pretty much covers the "official" sets.

Brickset is probably your best bet for definitive lists. Good luck, and don't go crazy for the super rare ones. You could probably source those bricks (without the official nameplates and save quite a bit.

 

http://brickset.com/sets/theme-Architecture

21024-1: Louvre - Not released yet.  From what I have seen your list pretty much covers the "official" sets.

 

I feel like that set was announced ages ago.  LIke sometime 4Q 2014.  Feels like it should have been out for awhile now.  I know it isn't out yet - anyone have a release date on that?

I feel like that set was announced ages ago. LIke sometime 4Q 2014. Feels like it should have been out for awhile now. I know it isn't out yet - anyone have a release date on that?

I think September.

Check this one out...

 

http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=2&toolid=10041&campid=5337057111&customid=setsEBAY-US&lgeo=1&vectorid=229466&item=111526198991

Check this one out...

http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=2&toolid=10041&campid=5337057111&customid=setsEBAY-US&lgeo=1&vectorid=229466&item=111526198991

I was a little concerned at just the LDD pics, but then they have the pic on the table and...wow. That's pretty impressive.

Check this one out...

 

http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=2&toolid=10041&campid=5337057111&customid=setsEBAY-US&lgeo=1&vectorid=229466&item=111526198991

That would be awesome if they made that one.