Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

One of the best-preserved examples of an old town lock-up in the country.

Inspired by Thomas Stothard's painting of the "Journey to Canterbury," albeit with Canterbury natives.

A 40-foot waterfall flows into this unique natural swimming hole.

Several Iron Age artifacts were discovered during excavations of this ancient site.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

An unusual round church in London with a Templar past.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

Carefully reconstructed after the Bosnian War, this 16th-century bridge stands as a symbol of the country's enduring multicultural heritage.

On this headland lies a 19th-century lighthouse and historic gun battery.

A 16th-century artillery fort built to protect England against European invasion.

The sole surviving medieval street cross in Scarborough.

According to legend, King Arthur killed a beast that dwelled beneath the waters of this Welsh lake.

This device was crucial to the Industrial Revolution development of Leeds.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

Home to the oldest operating roller coaster in the Southern Hemisphere.

This bronze boy sits on one of Capri's rocky cliffs, waving at the passing boats.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

With over 10,000 lights, this engineering marvel lights up the city after dark.