The flat land and small hidden streets and secrets make Barcelona one of the best cities in Europe to see by bike. Feel the wind in your hair on a custom chopper or a slick beach cruiser while enjoying complete access to the heart of the city in style and comfort and led by a knowledgeable tour guide who will take you to all the sights worth seeing, including (but not limited to) Paseo Colom, The Beach, Monumental, The bullfighting ring, Sagrada Familia, Paseo San Joan, Arc de Triomf, Parc Ciutadella, Cathedral, Barri Gòtic; Barcelona's landmarks are endless.
Don't forget to make some mental notes of where you'll be going for your night out later as this is a perfect way to familiarize yourself with this amazing city.