Once a year, since 2007, the LEGO company has released a modular building. You can see the full list here. They are typically made up of around 2,000 pieces and are full of different building techniques and styles. The 2015 set is the Detective Office. It includes a detective office, pool hall, and barber shop. While these sets are rather pricey, $159.99 this year, with over 2,262 pieces it makes it worth it. It has taken me a while to build this set, but once I'm finished, I'll post a picture.