The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

One of the most accessible undersea plane wrecks in the world.

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

In paradise, feral pigs have claimed an island all to themselves.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This super steep hike ascends 2,000 feet in less than a mile.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The largest source of fossilized insects anywhere.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

A trio of red, white, and blue stones embedded in the streets of Leiden are markers of medieval territory and law.

The loneliest plant in the world resides at the Durban Botanic Gardens...mostly.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

The 40-foot-tall votive candle is the largest of its kind.

A master plumber has turned his love of art and toilets into a folk museum that's not taking the piss.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

A collection of collections, including an anatomy museum, the “Cabinet of Physics of Alessandro Volta, a museum of natural history, mineral collection, and much much more...

Anatomical cabinet holds unexpected treasures.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

The oldest botanical garden in the world that technically isn't the oldest.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

The first and only carousel with a lineup entirely of insects.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.