Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A massive marble foot is tucked away in a small alley near the Pantheon.

A statue representing a lost Roman profession that was vandalized for centuries.

A forgotten "city of water" underneath the famous Trevi district.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

An alchemist's “magic door” stands in the middle of a Roman park.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Mysterious wreckage of a small plane has been lodged in this tree since at least 1971.

Cascading outward, this waterfall creates the appearance of a flowing veil.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

A standalone wonder amid the prairie badlands of southeastern Alberta.

Built to supply water to farmers in Alberta, this was once was the world's longest elevated concrete structure.

Not for the faint of heart, this long pedestrian bridge rewards those who brave the wobbly walk with a beautiful view.

A herd of colorfully painted bovine statues can be found in the middle of "cowtown."

A Victorian garden in a harsh climate at the border of the prairies and foothills of the Canadian Rockies.

A mysterious taxidermy man-beast of the seven seas.

In 1909, the steepest and most difficult piece of track on the Canadian Pacific Railway was replaced with a series of spiralling tunnels cut into the mountains.

A historic ghost town still worth a visit.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

Every four years, millions of salmon fill a river so densely that its waters appear deep crimson.