According to the legend, this strikingly beautiful hill has miraculous healing powers.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Hear the quietest sound from across the dome.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The evocative ruins of a 1,000-year-old hill fort lie within a popular tiger reserve.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

A blooming house of worship for the masses.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Sacred Indian temple that’s all monkey business.

The world's second-largest sundial, made entirely out of stone.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Be(w)ar(e) the moat around this historic Czech castle.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

A historic observatory precariously perched at the "Top of Europe."