The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The sign at the garden gate reads: "These Plants Can Kill."

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Largest lake in Great Britain measured by surface area.

Macbeth's infamous "Great Birnam Wood."

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Luxury hotel turned into a refugee camp, then turned back into a luxury hotel.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

The deepest metro station in the world.

An Art Nouveau building covered in animal gargoyles and grotesques.

340-foot statue built to honour the Heroes of the Soviet Union.