This abandoned Slovenian military barracks has become a punky-political art squat.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

This 135-year-old weather station studied the effects of the climate on human health.

Where the lovelorn find a home for their sentimental keepsakes.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

A small museum that celebrates the history and culture of the LGBTQ community in England.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

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

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

This enormous censer uses a pulley system installed over 400 years ago.

This remarkable museum sprung from one of the most important prehistoric archaeological sites in the world.

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

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

The site of a legendary battle immortalized in medieval literature.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

This South London cemetery holds the remains of more than 15,000 people.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.