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

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The house where the writer spent his formative years.

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

Feed it cash, get your very own gold bar.

No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”

Whitewashed mosque contains the world's largest carpet.

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."

This artificial archipelago was supposed to resemble a map of the world.

The world's largest frame offers spectacular views of the city's past and present.

This remote British Imperial telegraph relay outpost drove men insane.

South Korea's largely symbolic, barely used gateway to the North.

Breathtaking and huge 430 year old maps of Italy.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.