The world's longest continuously running show has played at this small West End theater since 1974.

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

This mosaic made out of books represents one of Colonial Mexico's most important literary figures.

Housed in a stunning Victorian building, this museum has the largest exhibition of knives, blades, penknives, and scissors in Spain.

This scenic cable car ride glides 100 feet above Mexico City.

A trompe l'oeil mural remembers the original colonial building that once stood here.

This third-generation institution is one of the last in London that still cures its own salt beef for epic sandwiches.

This sculpture encompasses the emotion of rail travel.

Built to celebrate the glory of a new queen, this forgotten monument has moved around Madrid three times, reflecting 200 years of political whims and city redevelopment.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

The lasting remains of an airfield used during the Spanish Civil War.

A miniature replica of the canine that became the logo for a large recording company.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

A statue commemorating a beloved stray dog who was adopted by the entire neighborhood where he lived.

Inspired by Thomas Stothard's painting of the "Journey to Canterbury," albeit with Canterbury natives.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

This bronze sculpture represents the helpless, hapless, and the damned who have passed through Piccadilly station since it opened in 1842

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

These rose marble urinals are the most luxurious loos in Liverpool.

Designed to celebrate the queen's 40th birthday.