A semi-scholarly approach to sex.

A vibrant, 100-foot-tall mural dedicated to Evelyn Nesbit, the tragic icon of the Gilded Age.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A pair of gigantic baby heads greet passengers at Atocha Station.

A lush indoor jungle fills this bustling Madrid transportation hub.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

This coffee shop lies hidden beneath a historic church.

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

A storied London perfume shop that supplies scents for royalty has been operating out of this storefront for nearly 300 years.

The bronze uniforms commemorate the vital role of women during World War II.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

This Underground station has been a popular filming location for decades, even before it closed.

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

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

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

Order a boozy baba au rhum at the oldest patisserie in Paris.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

Claude Monet was baptized in this lavishly ornate Paris church.

The video game-themed street art first popped up in the French city.