One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

France's most famous cemetery, with some of its most curious tombs.

The celebrated eyesore created by starry-eyed sweethearts.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Highly spherical boulders on the shores of New Zealand.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created with the discharge from a geothermal energy plant.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A clear example of the process of erosion in action.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.