A student driver's nightmare.

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.

This South London cemetery holds the remains of more than 15,000 people.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

This mineral lake known for its healing powers is so buoyant it's been dubbed the "Dead Sea of Canada."

Dedicated to the people of Indian Head, Saskatchewan.

This Art Deco landmark claims to be the longest bridge over the shortest span of water in the world.

This bushy bug is one of the unsanctioned public sculptures that have survived in Regina.

The abandoned tuberculosis sanatorium is said to be one of the most haunted places in Canada.

The world's largest moose statue is located (where else?) in Canada.

Underground tunnels once home to crime are now back open to the public.

Ride the subways of yesteryear.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Little Red Lighthouse under the George Washington Bridge.

The most confusing clock in New York.

Unrepaired walls from a 1920 anarchist bomb attack.