This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

Nature is leading a successful mutiny on this century-old freighter.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Rising from the sea like a stone monster.

Medicinal spa created with the discharge from a geothermal energy plant.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Staves, storm-calling, and of course, necropants.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

This star-shaped artillery fort protected the mouth of the Thames from the 16th century to the Second World War.

Where condemned pirates met their grisly end at the gallows on the River Thames.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A student driver's nightmare.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The remains of Crystal Palace Great Exhibition of 1851.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.