A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

The colorful stairs are made with marble from the world's major quarries.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Seemingly straight out of a fairy tale, a steel chair sits on a tiny island only accessible by stepping stones.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

This elegant arc of a waterfall marks a religious turning point.

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

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

Perhaps the most spectacular grotto along the Algarve coastline.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

A stone wall commemorates the legend of a ferocious dragon who literally got his butt kicked by a knight.

A 2,000-ton rock resting in a state of a delicate balance.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

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

A recreation of pop art pioneer Eduardo Luigi Paolozzi's London studio.

A domino effect created with Britain’s iconic telephone boxes.

This educational institution and reference library specialize in the psychic arts and mediumship.

This small sculpture honors a shuttered bookshop that was the site of a fiery act of protest.

This forgotten chalk mine was reopened thanks to a massive effort from the local community.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.