Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

Ship-sized kinetic sculptural fantasy.

Murals of the wild parties once held on the frozen River Thames.

The broken skateboards that became a poignant memorial to a murdered skater.

The Tudor-style cottage in the middle of the square is not quite what it seems.

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

A mysterious shape catches the eye in this 16th-century painting.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

The medieval woodcut-style artwork chronicles life in medieval London.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

One of the only spherical 19th century gas containers left today.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

The attic of a four-century-old canal house hides a clandestine church.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

The last Victorian market in Belfast.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

This massive monument has been telling the time for 150 years—at a slight angle.