Barça football fans might see the insignia hidden in a church window as a divine sign.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

An early 20th-century bullring converted into a modern shopping center.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

An eerie collection of the surviving structures from a past celebration of the future.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

Little-known artist couple chose a former silk factory as the location for a museum dedicated to their work and other avant-garde art.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

This museum contains a vast array of puppets and marionettes from all over the world, featuring incredible works by Portuguese creators.

A garden in Lisbon filled with giant porcelain creatures.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

The world's oldest bookshop still in operation.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

A small but charming botanical garden that contains many exotic plant species.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

This mundane post marks the old location of the city's main postal hub.

The artwork mysteriously appeared within an Edinburgh cemetery.