La Candelaria is the historic center of Bogotá. In this area you'll find colorful colonial architecture, many handicraft shops, restaurants and museums (e.g. Museo Botero, Gold Museum, etc). Kiki also highly recommends the Graffiti Tour (http://bogotagraffiti.com) as an insightful and inspiring way to see the center of the city.
In the north of the city, in Usaquen, every Sunday there is a kind of flea market where many Colombian "artesanías" are sold. Usaquen is a small, nice neighborhood with a typical plaza and many cafes and restaurants. https://www.mercadopulgasusaquen.com | https://www.instagram.com/mercadopulgasusaquen/?hl=en
"Barrio" (neighborhood) with many restaurants, bars and a shopping center called "Centro Comercial Andino". If you're looking for nightlife, you'll find plenty of options here.
We went here a couple of weeks ago and we cannot recommend it enough. Delicious Mexican food with the best cocktails and variety!
Kiki's favourite bakery in Bogota. www.instagram.com/arboldelpan/?hl=en