Canada's oldest sugar maple has been growing since around 1500.

One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

Belfast's namesake river still winds below the city center, hidden from sight.

This giant disembodied horse head seems to balance impossibly on its nose.

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

An unexpected Easter egg lurks in the background of a cherub wall relief at the Breakers mansion.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

The attic of a four-century-old canal house hides a clandestine church.

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

An unusual round church in London with a Templar past.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

The world's oldest surviving music hall was also once a freakshow.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This Scottish museum is the only one in the world to focus not on one religion but all of them.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

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

Local lore claims this park is named after a young woman who jumped off a cliff.