Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

A menagerie of curiously bred creatures.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

A stunning Victorian abbey and walled garden on a lakefront.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This king penguin is a knighted brigadier of the Norwegian Army.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

A six-ton wedding present for the King of the Scots.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

The final resting place of soldiers' loyal canine companions.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Three columns of volcanic rock shoot out of the ocean.

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

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Eighty million natural history specimens call this gargantuan museum home.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

These medieval carvings bear scars left by Parliamentarian troops during the English Civil War.

You can climb to the top of the column built to honor the "father of British inland navigation."