A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

The two massive guns that defended Cartagena Bay.

The world's first electric battery-powered submarine.

This Spanish shoe museum has history, has design, and has a pair of Rafael Nadal's tennies!

An ancient temple to the Hindu god Shiva surrounded by jaw-dropping scenery.

A significant cache of prehistoric valuables is on display in an unassuming museum tucked inside a town hall.

One of the few places where inexperienced snorkelers can spot a shark.

The tower was originally used as a chimney for the waste incinerator of St. John's Precinct and Market.

This charming English house was once the home of England's most famous poet.

Recently restored menagerie of Victorian-era beasts.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

This aging storage facility is the world's largest brick warehouse.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

A historic Georgian building and warm springs.

Chemical fertilizer in agriculture's origin story begins here.

A rare example of the RAF’s flying spy taxi.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

This former military airfield's claim to fame came from a lucky accident during the Second World War.

Hear the quietest sound from across the dome.