Dark Net is a sophisticated place, it not named dark for no thing. If you want to start your discovery down the hole, you gonna have some decent guidance and knowledge. For example, you will need some special onion gadget for browsing dark net anonymously, like tor browser and a lot more. Or, you would have to accept different habits for examining deep onion, not to mark footprints.
Good thing there are some websites build to walk you through complex world of underground deep web hidden from the surface. This one is the best one i know http://darknet-markets.site/
Darknet-markets.site - is an basic navigator through the world of dark web.
It got so much in store : most popular darknet, the complete guides for anonymity, guides for onion marketplaces, tor reviews, fresh, updated and legit tor marketplaces URL.