A tiny, hidden alleyway dedicated to the father of meteorology.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Sacred Buddhist home of some spiritual monkeys.

Towering at a height of over 30 meters, this turn-of-the-18th-century landmark is the tallest temple in Nepal.

A small museum contains one of the largest collections of ethnic and traditional headgear in the world.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

Hundreds of unusual wheel crosses poke above the earth in this small Estonian cemetery.

The world's largest frame offers spectacular views of the city's past and present.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

A faithful reproduction of Al-Jazari's enormous water clock.

The largest falcon hospital in the world, caring for over 6,000 feathered patients every year.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.

This beautifully historic Bahrain fortress might not be the most popular attraction around, but that might make it all the better.

Skyscraper powered by wind turbines attached between its towers.

This centuries-old tree tells an unusual tale of vegetation and fertility in the desert.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

A fake medieval village in the middle of Turin.

The astonishing collection of an infamous criminologist.

When this funny little building went up in the 19th century, most people thought it would simply fall over.