Located inside Hoge Veluwe National Park, this museum began as the private collection of a prominent female art collector.

Underground attraction offering tours of the foundational ruins of a church nave that collapsed in 1674.

'The Letters of Utrecht' lays out a ribbon of poetry one letter at a time, with no final verse in sight.

Atop this former dutch railway office sits an interstellar work of art.

The cutest way to stay safe in traffic.

This piece of Australian modern art is part joke and part history.

This strange geological landscape erupts with sudden bursts of water.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

A giant doughnut was given to the small New Zealand town of Springfield to promote "The Simpsons Movie."

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

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

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

The geoglyph once sported a glass bottle eye.

Europe's largest prehistoric mound – burial site of a legendary king?

The largest stone circle in the world has ended up bringing up more questions than it has answered.

A decaying, yet still functioning, work of communist architecture.

An homage to the medieval rulers of Bulgaria.

"Holy Wisdom" overlooks the city that became its namesake.

Sofia's legislative center is continuously reinventing itself.

A striking symbol of the Bulgarian capital.