Microscopic scenes; some call it novelty, some call it art.

Two stunning 17th-century libraries and a cabinet of curiosities.

Macabre astrological automaton clock dating to the late 1400s.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Large Hadron Collider and the Birthplace of World Wide Web.

The most loyal of little dogs, or a Victorian era publicity stunt?

Some of the smallest works of art in existence.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

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

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

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Mountain where Jesus was first tempted by the Devil.

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The land is home to swimming ponies and a legendary 18th-century treasure.

The world's largest fully steerable radio telescope.

Washington's iconic carousel has a nice piece of Civil Rights history.

Decades before the scandal, this staircase on the river was a literal "water gate."

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.