The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The last Victorian market in Belfast.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

This massive monument has been telling the time for 150 years—at a slight angle.

These engineering masterpieces are a dominant feature of the Belfast skyline.

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

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

This one-room museum is dedicated to Norwegian history and jokes.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

This bazaar is one of the oldest in the Arabian world.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

Skyscraper powered by wind turbines attached between its towers.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

In Egypt's expanding metro area, many of the neighbors are dead.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.