Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This combination shop and museum is filled with curious items and artifacts.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This half-ton piece of the Alps sits at the base of the CN Tower.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

These relics of the city's past now exist as a prominent modern feature.

This replica of the Greek structure is in the heart of Nashville.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

An aluminum skeleton brings Chinese mythology to the French shore.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This memorial museum chronicles the apocalyptic destruction of the First World War.

A moving memorial to the fallen and missing from WWI trenches.

A rare example of World War I trenches from the British front.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Gladiators once walked this ancient, subterranean passage.