SURREAL:

SURREAL: Surreal scenes as teams face off in the biannual human tower competition in Spain's Tarragona city. More than 40 teams of “castellers” recently gathered for the city’s 29th biannual human-tower competition – working together to build the highest and most complex human towers (castells) possible. Winning teams reached as high as 10 tiers above the ground.

PHOTOS: REUTERS