This battery powered bell has been ringing since 1840 and is one of the worlds longest running science experiments.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Eighteenth-century home, where Herschel discovered the planet Uranus.

The curios of pharmacist and collector Henry Wellcome.

Eighty million natural history specimens call this gargantuan museum home.

Handsomely crafted representations of our round planet.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

The history of radiation is on safe display at the foot of a radiation science laboratory.

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

This massive World War II calculator hearkens back to the days when "computer" was a job title.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

The world's largest impact crater is mainly eroded but still remembers the planet's violent history.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

The remains of diamond fever taken over by the desert.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

Fascinating collection of Khoisan rock engravings, still situated in their original setting.

Hidden in the hills is a mysterious stone structure, known only to a few.

A South African bar inside a hollowed out 6,000-year-old Baobab.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

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