The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

Perhaps the only prehistoric monument with its very own public bus stop.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A circle stone within a stone circle.

A modern mechanical planetary system, part of a 10,000 year clock.

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

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

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

Every equinox this Maya pyramid puts on a spooky ancient light show.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

Iconic red and white plaques show the creative names invented to navigate the city streets.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

A student driver's nightmare.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.