An unusual round church in London with a Templar past.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A memorial to the British politician who spearheaded the National Health Service.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

This massive, ancient stone was disassembled and then put back together again.

One of the largest underground systems runs under Canada's largest urban center.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.

A monument to the 17,000 Chinese who worked and died to build Canada's Pacific Railway.

It's believed this well was once plagued with evil spirits until St. Columba purified the water.

This giant steel bear is a tribute to naturalist John Muir.

A stone-filled garden in the heart of Edinburgh commemorates the father of modern geology.

A former church that has been chronicling the Scottish island of Islay's rich history since the 70s.

A controversial cenotaph dedicated to a local physician with an unscrupulous past.

After 800 years, Europe's oldest elm tree has met its end.

One of a series of sculptures making a statement about sea-level rise in the United Kingdom.

A private home envelops the ruins of this 13th-century priory.

It's said that at this location, a Scottish poet met the Queen of the Fairies.

A 13th-century stronghold that has fallen into ruin.

The carved medieval stones stand near the ruined abbey's parking lot.

This monument dedicated to the legendary American showman can be found in Scotland's largest city.

As part of an 800-year-old tradition, a man parades through town covered in a suit made out of spiky burrs.

A poetic monument to the Scottish Parliament.

Inside this art museum resides one of Glasgow's most famous musical instruments.

Unusually, this ancient Iron Age broch has never been excavated.