A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Putting the "mod" in "modular" since 2000.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The fake World Cup prize was secretly created after the first one was stolen in 1966.

This historic abandoned train station looks like a stop for ghost trains.

Built in the 1300s, this magnificent building that hosted England's kings and queens transports you to the Middle Ages.

For over 500 years this timbered alms house has provided a home for elderly residents of Coventry.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

All that remains of the only English cathedral destroyed in the Protestant Reformation.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

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

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

What was once a unique system of urban elevators is turning into a mechanical ruin.

It's just another skyscraper, but it's shaped like '90s cell phone.

The “City of Stairs” sits high in the Andes, above the world’s largest underground copper mine.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.