This historic estate on the east shore of Lake Tahoe was home to an eccentric millionaire (and his pet elephant, Mingo).

This short-lived tea and silk farm is believed to be the first permanent Japanese settlement in North America.

This 19th century hydroelectric powerhouse was the first of its kind.

Special tunnels built so that frogs won't be killed when crossing the highway.

The world's largest wooden structure.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

A 16th-century Andalusian palace.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The final resting place of the great navigator, or maybe his brother.

Spain's largest bullring offers a unique glimpse at architecture and history.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

This Scottish graveyard is the final resting place of the man who inspired the character Ebenezer Scrooge.

This painting of a beloved dog will be on display at the Scottish National Gallery at long as the museum exists.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

Neon artworks light up this dark Edinburgh tunnel.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This mundane post marks the old location of the city's main postal hub.

This stately bank building hides a spectacular star-studded ceiling.

An artist's whimsical transformation of everyday objects.

If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.