France's most famous cemetery, with some of its most curious tombs.

Memorial to the Titanic engineers that died working to hold back the sea.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

Ancient snack bar of the Roman Empire re-opened.

A typographic tribute to the many comedic greats who make Great Britain laugh.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

These upturned herring boats make nifty storage sheds for fishing goods.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The sign at the garden gate reads: "These Plants Can Kill."

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

Believed to be the capital of the the ancient kingdom of Dál Riata.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

These formal gardens were designed to be admired from the vantage point of the castle.

A 13th-century stronghold that has fallen into ruin.

This mural condenses 96 miles of one of Scotland's best-known trails into a unique art display.