Basílica de la Asunción de Santa María

Looming high over the old centre, this grand late-Gothic church, complete with flying buttresses topped with pinnacles, offers a vision of grandeur surprising for such a small town. In fact, Lekeitio's prolific whaling industry helped fund such extravagance. Highlights include the frieze-covered west facade, and a staggering Gothic-Flemish altarpiece that's the third-largest in Spain after Seville and Toledo.