An agreement meant to honor the Duke of Buckingham led to this unusually-named passageway near Charing Cross.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

You will not be able to miss this building.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

Museum celebrating the history of computers, especially their role in codebreaking.

The bones of two medieval royal lions were discovered at the historic fortress.

Regency-era excess on the English Coast.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

An incredibly well-preserved piece of ninth-century Viking poop.

A living memorial to the trees London lost during the Great Storm of 1987.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

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

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

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

A tiny replica of the iconic London landmark hides on the side of the steel structure.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

This underpass became an unlikely piece of cinematic history after its appearance in 'A Clockwork Orange.'

A vintage penny arcade hidden in the back of a fun fair-themed bar.

London’s first road overpass is so old that it was originally built for horse-drawn carriages.

This semi-permanent cathedral was built of cardboard, wood, and steel after Christchurch's 2011 earthquake.

This curious sculpture represents the perseverance needed to take to the skies.

A plaque on the side of a building is a small tribute to the woman who invented an iconic Berlin fast food.