With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

This natural wonder is disappearing at an alarming rate.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Where Venice's gondolas go for a tune-up.

Two stone columns flank the grand Venice square, but there were supposed to be three.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

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

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

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

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

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

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

The largest game reserve in Africa is home to thousands of species but refuses to house humans.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

An enchanting rocky island of scraggly baobabs surrounded by an ancient sea and sprawling salt pans.

A growing popular hipster market with over 100 local specialties and live music.

In this Borneo cave, it's not the thousands of bats you need to worry about, it's the blankets of roaches.

Malaysia's floating mosque.

This tiny island in the South China Sea is crawling with venomous sea snakes.

One of the largest caverns in the world has a maw large enough to stack cathedrals in.