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

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Eighty million natural history specimens call this gargantuan museum home.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Iceland's tribute to its thankless civil servants.

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The man who wasn't there.

The highest rapid transit station in the world.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

This slender three-story building has also had several famous residents.

The former sign of this immortal music venue is just that--undying.

The competition: breathe deeply as long as you can.

The greatest real estate coup of all time.