This grand gothic brewery has been pumping out suds for over a hundred years.

Where the U.S. government kept its actual treasure, before Fort Knox.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

This Manchester laundromat is hiding something.

Hidden beneath the streets of London is a secret subway that only carried mail.

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

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

The location of this historic castle was inspired by a donkey.

A humble ancient well where Scottish knight, Sir William Wallace, took his final drink.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Spend the night in this formerly abandoned traditional Scottish village.

These fantastically named natural pools look like something out of a Scottish myth.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

This mysterious and unique painting is filled with symbolism.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.

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

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.