Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

An eclectic collection of thousands of items owned by the sculptor Frederic Marès.

Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it's possibly not a palace either.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

A whimsical garden of outsider art in the Spanish countryside.

A complimentary beverage is offered to the bodega's resident rodents every day.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Mountain where Jesus was first tempted by the Devil.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

This cemetery features modernist statues as strange as its name.

A Romanesque tower appears when water levels drop.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

Flowers have mysteriously appeared on her effigy every day for the last 150 years.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.