In 2014, LEGO released 2 Architecture Landmark Series sets, all of these sets have been retired. For that year, the total price of all retail sets cost $85, today those sets are valued around $301, a growth of 355%.
Most valuable 2014 LEGO Architecture Landmark Series set
21020 Trevi Fountain $199.92
Most owned 2014 Architecture Landmark Series set
21019 The Eiffel Tower
Theme / Subtheme Architecture / Landmark Series
Year 2014
Pieces 321
Availability Retired
21019 LEGO Architecture The Eiffel Tower
Retail $34.99
Value $101.48
Growth  190.0%
Annual growth 21.5%
Theme / Subtheme Architecture / Landmark Series
Year 2014
Pieces 731
Availability Retired
21020 LEGO Architecture Trevi Fountain
Retail $49.99
Value $199.92
Growth  299.9%
Annual growth 8.3%