The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

Astonishing rock formations dot the Brimham Moor landscape.

The glacier tucked within a New Zealand rainforest.

Northern Ireland's Brobdingnagian stepping stones.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.