Budapest is also called Paris of the East, it is the hungarian capital, it's one of my favourite city in Europe. Almost everyone here speak hungarian (Magyar in hungarian language) which meant to be one of most difficult language in the world.
The architecture in the city is amazing it has a lot of history mixed soviet and ottomans.
Budapest also got amazing Turkish baths, largest open ice-rink in Europe. The food and drinks are extremely cheap so other things.
Budapest has very quirky restaurants, pubs and cocktail bars. One of my favourite is Szimpla Kert which is in old warehouse