This humble bench is considered the most beautiful in the world.

The world's largest sundial can cast a shadow more than 1,600 feet long.

The Spanish king's private bathroom embraced the idea of a porcelain throne.

This fountain was designed to honor the man who helped bring water to Barcelona.

Dedicated to a young woman who broke gender barriers at the University of Madrid.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

This beloved ancient tree is the pride of this city center.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Built on the foundations of an ancient Roman villa, the unique architecture of this castle on the Catalan coast was used as a set for 'Game of Thrones.'

King Carlos IV laid the first stone during construction of this chapel.

A prehistoric cave in Spain contains paintings dating back to the Ice Age.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

A road that winds through this natural cave is the only way to access the small, appropriately-named village of Cuevas.

This ancient rock painting is the oldest evidence of humans’ love affair with honey.

The grotto where Saint Ignatius of Loyola lived as a hermit for nearly a year.

The building hides in plain sight in Ribadavia's historic Jewish quarter.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

The surviving remnants of a destroyed medieval church now stand in a public park.

This enchanting green space houses a labyrinth lined with toxic plants.

Remote, beautiful, and stigmatized, Las Hurdes is Spain's version of Appalachia.

Locals use these rock pools and waterfalls for swimming and cliff diving.

This beautiful spit of land was once the summer playground of the king of Spain.