As long as you aren't seriously scared of heights, you should try and take this longstanding cable car ride from Montjuic high over the port to the beach side neighbourhood of Barceloneta. As you wait to board, the aging cables can creak and sway alarmingly, but the staff remain nonchalant. Suspended about seventy metres over the harbour you can scan Barcelona's eclectic architecture taking in the statue of Christopher Columbus, mounted on a towering plinth at the bottom of Las Ramblas, to the brooding medieval towers of the Gothic quarter to the elegant spires of La Sagrada Familia high above the city rooftops stretching across to the distant hills. Below you, scores of yachts form neat rows in the marina. Half way across, the distinctive red cable car, which can carry 19 people, passes through a central tower next to the World Trade Centre before reaching the tower at Barceloneta beach where you may have to queue for the small lift to take you down to ground level. A single fare is nine euros, but small children travel free. 7/10
