Climb inside an iron crystal magnified 165 billion times its normal size.

A surprising number of shipwrecks visible just off the Somaliland coast.

A MiG-17 fighter jet sits atop this memorial to the indiscriminate bombardment of Hargeisa.

This cave located in the badlands of Somaliland contains some of the oldest cave art in Africa.

The supreme shrine of the state.

The burial ground of two kings and a queen is now a calm city park in the middle of bustling Seoul.

Where condemned pirates met their grisly end at the gallows on the River Thames.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A little slice of Japan and its aesthetics in London's Holland Park.

London's smallest police station is barely the size of a phone booth.

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

An unusual round church in London with a Templar past.

Rebuilt remains of a temple to Roman god Mithras.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Op-art architecture designed for happiness.

Baroque celebration of the end of the Great Plague of Vienna.

Handsomely crafted representations of our round planet.

The beautiful baroque library of the Hapsburg empire.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.