metropol parasol is a building/structure/something with a museum (roman and arab ruins, called Antiquarium) in the lower ground floor, a food market in the ground floor, a square in the 1st floor and rooftop views from the top floor. If you go morning time the market will be open, but I think the rooftop is better as you say at sunset. I would give it 1 hour or so, including wandering around, etc.
take a look yatzer.com/Metropol-Parasol-The-World-s-Larg…
If you are planning to go to Italica, in the outskirts of seville, then the antiquarium is not that important (or if you don't like roman ruins anyway)
as for favorite tapas bars in the area:
- Pando: Calle Cuna 5, in front of your venue. More of a restaurant than a tapas bar, but great place for a informal dinner.
- La Giganta, in Calle Alhondiga 6, very close, great tapas.
- Ajoblanco, in Calle Alhondiga 19, small but great bar. Mix of andalusian tapas and mexican botanas.
- Los Coloniales, in Plaza del Cristo de Burgos, 19, a bit after the metropol Parasol. Nice square, classic bar. It's always full so you'll have to wait.
- Heladeria Rayas, not a bar, but a to-go ice-cream shop. One of the best ice-cream I've tasted. In Calle Almirante Apodaca, 1, same square as Los Coloniales, but on the opposite side.
Edited: 12:07 pm, February 07, 2013