Central - Big, vibrant cities and home to ancient Thai heritage. It has some great temples, shopping, nightlife, food and some cool nature getaways.
Bangkok is the capital city, a cocktail of culture, food, parties and shopping. You can witness the intermingling of 3 very distinct cultures here - Thai, expat and backpacker.
Pattaya, just 3 hours away from Bangkok is the party and debauchery capital of Thailand (of course you’ve already heard of Pattaya!). It also has a ton of adventure activities like bungee jumping, skydiving and scuba diving.