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

This Scottish castle has witnessed clan rivalries, Jacobite uprisings, whisky smuggling, and more.

This brilliant display of whirling fireballs celebrates Hogmanay.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

A glacial pothole was once a hideout for a notorious Scottish outlaw.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

A beautiful hike through national parks, forests and beaches in Western Australia.

Hundreds of people walk past this palm tree every day without spotting its secret.

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

Visible from both land and sea.

A monument to a working class martyr.

This drowning bronze monument marks the spot where one of Australia's great engineers died by suicide.

The ruins of a once prosperous power station have become a mouldering seaside gem.