Mysterious stone tower featured in many alternative histories of the New World.

The oldest still-operating tavern in the United States was once owned by a pirate.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A lush green oasis in the middle of Chicago.

A massive Montreal stadium that has seen nothing but trouble since its inception.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

A historic Montreal market that was the city's agricultural hub for over century.

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

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

A contemporary fresco movement illustrates the region's rich history.

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

Climb to the top of the world's largest seated bronze Buddha.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

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

Macabre astrological automaton clock dating to the late 1400s.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This 16th-century house tells the city's history through old artifacts and quirky tales.

Giant, friendly pelicans in Central London, the most unlikely of places.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

London's smallest police station is barely the size of a phone booth.

An unusual round church in London with a Templar past.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.