Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

Designed by Gustave Eiffel before his famed tower.

These distorting, funhouse mirrors achieved fame in a renowned piece of Spanish theater.

One of the best examples of the modernist movement in Madrid.

Nicknamed the "Spirit of Paul Klee," this colorful apartment building features an array of multicolored panels.

For more than half a millennia, this automaton has rung an hourly bell.

The oldest building in Madrid.

One of Ireland's lesser-known megalithic structures.

The unpredictability of this pendulum's movements has drawn visitors to this magnificent church for decades.

This grand gate once marked the entrance to a military barracks.

The magic of Spanish aviation housed under one roof.

At least according to the Guinness World Records.

Kissing the ass of this stone lioness has become a rite of passage in the city of Girona.

The small Spanish town that played an important role in a human's first steps on the moon.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

This historic fountain is a favorite neighborhood meeting point.

Made up of 3,200 recycled glass bottles, this tree pays homage to Asturia's love of cider.

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

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

This Art Nouveau gate still stands at the former entrance of a 20th-century Spanish writer's colony.

This sculpture of a rider on horseback once crowned the tomb of an Iberian aristocrat.

Touching the iron railings of Tarragona's balcony to the Mediterranean is said to bring good luck.

Designed to mark the geographical center of France.

The bell that resides above this small chapel is actually a converted bomb.