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

A glacier pocked with ice caves and surrounded by rainforests.

The glacier tucked within a New Zealand rainforest.

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

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

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

Climb inside an iron crystal magnified 165 billion times its normal size.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Apartment complexes built into huge repurposed natural gas tanks.

Baroque celebration of the end of the Great Plague of Vienna.

The beautiful baroque library of the Hapsburg empire.

An engineering masterpiece, or “Scheme of Madness?”

This Western Australian mint was established during the height of the Australian gold rush.

Visible from both land and sea.

Critics argue this boab tree has been mislabeled for the sake of dark tourism, undermining its spiritual significance.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.