These naturally occurring but rare geological formations are each about the size of a small house.

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

This unusual stone monument marks the starting point of the epic and tragic event.

From the late 19th century until the 1960s, these stone-lined "stumps" were a popular place for people to air their views on local and international issues.

Australian Lake set aglow by Noctiluca Scintillans.

This 20-story artwork on a public housing block is the tallest mural in the Southern Hemisphere and tells the story of a community.

This collection of Neolithic monuments make up one of The U.K.'s richest archeological landscapes.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

It's said this was once the home of King James V's pet lion.

This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

This modern pedestrian bridge on the Yarra River was modeled after an Aboriginal fish trap.

The gathering point of an old Melbourne swimming club was site of a historic, world-record dive in 1918.

This museum is home to one of the largest private collections of seashells in Australia.

A plaque at the lighthouse where Frederick Valentich made his last radio contact before he vanished without a trace.

A poignant memorial to remember the Australian nurses who lost their lives during the Second World War.

A large Melbourne wall is home to an iconic work of art from one of the world's most renowned street artists.

Equipped with thousands of LED lights, this geodesic dome-shaped stadium is an engineering delight.

This statue commemorates a special connection between ancient Greece and the Melbourne suburb of Brunswick.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.

Believed to be the smallest castle in Europe.

A bronze statue pays tribute to the Hungarian player and coach, one of soccer's first international superstars.