Nestled way back in an industrial park, past a bunch of businesses and a car dealership, keep driving all the way to the end until you see a garage door that says “Solemn Oath”. Then you know you've arrived at hard-to-find Solemn Oath Brewery in Naperville. The new brewery located about an hour's drive from Chicago is best known for its Belgian-inspired and barrel-aged beers. The place is tiny with just about 10 seats but regulars and loyalists insist it packs a punch. You can watch them brew beer right in front of you as you drink what they've just made.