An ancient Egyptian temple in the middle of Madrid, Spain.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The world's largest wooden structure.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

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

Louise Bourgeois' 30-foot-tall steel spider sculpture.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Only six people can sit inside this delightfully quaint sanctuary.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Every year, the colorful murals of Montreal get a complete makeover.

Two thirds of this Montreal neon icon has survived to flash another day.

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

A unique seaside cave where Aleister Crowley faked his own death.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

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

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

A cluster of granite granaries perched on stilts.