A beautiful window with the old Tesla Radio company logo.

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

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

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

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

One of Europe's largest supercomputers is housed inside of a disused chapel.

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

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Mountain where Jesus was first tempted by the Devil.

This monumental neo-Renaissance tomb in Vyšehrad Cemetery is the final resting place for Czech cultural legends.

The ruins of a medieval bridge are visible inside a Prague Metro station.

A real Hawker Hunter jet in the middle of Basingstoke.

First road tunnel in England.

This bright ship once guided vessels towards the Port of Southampton.

One of the oldest cathedrals in the U.K. houses a priceless early manuscript.

These unassuming buildings in the tranquil churchyard of rural Warblington are in fact grave watchers’ huts.

A rare full-sized statue of one of Britain's famous writers.

A Victorian synagogue-turned-museum chronicles centuries of Jewish life.

A free ferry service has run between these two English villages since 1885.

A ruined priory that was once a favorite pilgrimage site for English kings.

This 11th-century Cistercian abbey was once seized by Henry VIII.

This 500-meter-long memorial pays tribute to the hundreds of thousands of lives lost to COVID-19 in the UK.