Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

This legendary urban waterfall creates a dazzling display of rainbows.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

The castle still holds traces of the abandoned Roman fort it was built atop.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

A baffling beast so absurd a town councilman called it "intellectual vomit in technicolor."

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

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

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

This Scottish burial tomb once held hundreds of ancient eagle bones.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

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

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

A book bound in the skin of an infamous criminal, along with countless other specimens.

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

Spend the night in this formerly abandoned traditional Scottish village.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

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

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.