Amazon America currently has LEGO Architecture 21027 Berlin on sale for $22.99 (reg.$29.99). Savings work out to be 23% off. Free shipping on orders above $35.
Other Architecture Sets
-24% off – 21028 New York City $45.83 (reg.$59.99)
-24% off – 21023 Flatiron Building $30.24 (reg.$39.99)
-23% off – 21026 Venice $22.99 (reg.$29.99)