Rocco Buttliere completed his version of Westminster Abbey, which extends his previous model of Palace of Westminster. Together, along with a few other buildings, these landmarks form the Westminster World Heritage Site. The models themselves are highly detailed from facades details to landscape elements.
Full Plate entered Swebrick's single color competition with his gray scale Twilight Cemetery. My two favorite part usages are the book used as a roof and the chain trees.
Micah Beideman constructed two temples; the Eastern Air temple from Avatar the Last Airbender and another for ABS contest. The temple for the ABS challenge uses the white lifesaver as the seed element, and rubberbands as columns for the temple.
Fabio Marelli built a rendition of Solomon's Temple, which was destroyed in Jerusalem in 587 BCE. The model is nicely detailed and stays true to historical descriptions of the temple.
Patrick Massey built an epic Minifig scale mosque in time for a group event. The spectacular model makes good use of color and technique (especially with cheese slopes) to achieve a great example of LEGO architecture.
Letranger Absurde built an amazing cathedral titled the Wicked Zoot Abbey. The abbey has a ton of amazing techniques, such as the upright tile facade (just too cool) and the spires on the roof.
alanboar built a mini model of the famous Japanese temple, Kinkaku-ji. I really like the clip and bar pieces that form the rails of the temple. Overall I think the level of detail is really amazing for such a small scale.