A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

A temple to modernity, tucked away amid Barcelona's more well known museums.

Turntable anonymously received orphans, alms, and groceries.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

This bridge was constructed from the rubble of the infamous Bastille.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A surrealist timepiece by the artist of melting clocks.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

Time has stopped at the house where Gandhi died.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

An ancient iron pillar in Delhi that seems to be rustproof.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

An extraordinary "City of Caves" carved from solid stone.

The world's second-largest sundial, made entirely out of stone.