This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The most visited, and possibly most controversial, museum in Germany.

Started as a kitchen garden, now the second largest botanical garden in the world.

This charming candle shop has been in business since 1789.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The world's oldest bookshop still in operation.

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

Grab a cuppa at England's first and only domestic tea plantation.

This small island, a byproduct of 19th-century canal construction, is now home to a charming Japanese garden.

An astounding collection of taxidermy, fossils, skeletons, and even a few strange live beasts.

A 2017 crowdfunding campaign saved this historic castle from being destroyed.

Resting on a hill overlooking the coast, these medieval ruins look completely deserted save for their restored chapel.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.