On Sundays, Teguise is the island's carnival — the famous market floods the old capital with stalls and coaches. Lovely once. But the connoisseur's Teguise is any other morning, when the crowds are gone and you can hear your steps in Spain's… well, one of Spain's oldest colonial towns: capital of the island for over four centuries, laid out from 1418 around the palace of Princess Teguise's line. Wander the basalt-and-whitewash lanes: the church of Guadalupe on its grand plaza, the Palacio Spínola (now the timple museum, card 70), convents turned art spaces, doorways with five-hundred-year-old coats of arms. Climb to the Castillo de Santa Bárbara on its volcano rim for the piracy museum and the full-island view. Sunday for the buzz, Tuesday for the soul.
Teguise carries its history with the calm of a town that has already survived everything: pirate sackings (the Callejón de la Sangre — Blood Alley — keeps the memory in its name; the pirates card tells the worst of it), the loss of the capital to upstart Arrecife in 1852 (card 72), and finally mass tourism, which it absorbed by the elegant trick of scheduling it — Sundays — and remaining itself the other six days.
The town is one of the oldest European settlements in the Atlantic islands: founded in the early 1400s beside the Guanapay volcano, named for the Majo princess who married into the conquerors' dynasty (the toponymy card savours that story), and for 440 years the seat of the island's power, church and money — all deliberately inland, out of reach of the corsairs' quick raids. That geography preserved it: when the capital moved to the port, Teguise simply stopped in time, and today it is the best-kept historic town in the eastern Canaries — a grid of white façades, dark basalt frames, carved wooden doors and silence.
The essentials, unhurried. The Plaza de la Constitución, broad and dignified, with the church of Nuestra Señora de Guadalupe — the island's mother church, rebuilt after every disaster, its tower the town's landmark. Facing it, the Palacio Spínola: an eighteenth-century merchant palace of patios and painted ceilings, now the Casa-Museo del Timple — worth it for the building alone, doubly so for the little instrument's story (card 70). The lanes radiating out hide the rest: the former convents of San Francisco and Santo Domingo (now museum and gallery spaces), the Casa-Museo troves of island furniture, the Callejón de la Sangre behind the church, shops of actual craft between the usual suspects, and courtyard cafés built for second coffees. Everything is walkable in an hour; everything deserves three.
Above town, the exclamation mark: the Castillo de Santa Bárbara, a small stout fortress on the rim of Guanapay volcano, whose watchmen once scanned the sea for sails and lit the warning fires. It now houses the Museo de la Piratería — theatrically fun, genuinely informative — and the 360º view is the island's history lesson in one sweep: Teguise huddled sensibly inland, Arrecife glittering on the coast that was once too dangerous, Timanfaya's fire mountains south, Famara's wall north.
As for the Sunday market: go once, early, for the spectacle — it's the island's biggest social event, and between the sarongs there are real artisans, plus folklore performances by mid-morning. But mark a weekday too. Teguise on a quiet Tuesday, swifts overhead and basalt cool in the shade, is the closest the island comes to time travel — and it costs exactly nothing.