This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

Students can borrow artwork from this gallery to display in their own residences.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A floating cat sanctuary on an Amsterdam canal.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

A beautifully eclectic mix of architectural styles.

In the depths of Glasgow Cathedral's crypt, one pillar stands out from all others.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

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

The final resting place of soldiers' loyal canine companions.

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

These fantastically named natural pools look like something out of a Scottish myth.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Remnants of a Victorian garden feature sitting in public woodland.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.