A cairn commemorating James Cook's second landing in Australia.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

A remarkable feat of Victorian engineering across the Firth of Forth.

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

Rainbow shutters decorate this former police station.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

The largest and most famous wax anatomical collection anywhere in the world.

Eat your Big Mac in a DC-3.

A network of fortifications that never saw conflict.

The ruins of New Zealand's largest classical-style church.

This deadly little sliver of beach has seen hundreds of whales beach themselves over the years.

Hundreds of bras, blowing in the wind.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A hugely vast Irish landscape of barren rock that stretches for miles.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The curios of pharmacist and collector Henry Wellcome.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Breathtaking and huge 430 year old maps of Italy.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Pilgrimage site for star-crossed lovers.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Largest lake in Great Britain measured by surface area.