An architectural oddity hides in plain sight on this iconic London bridge.

The broken skateboards that became a poignant memorial to a murdered skater.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

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

Banksy gives themself artistic license with this piece of London street art.

A kaleidoscopic warehouse-maze of handmade neon signs.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

The exhibition explores the Icelandic city's Viking Age history.

A Wes Anderson-esque lighthouse that boasts magnificent coastal views.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

This stunning concert hall has become a symbol of Iceland's national recovery.

The Arctic Circle runs through this isolated spot north of Iceland.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.