Scattered throughout London are ancient remnants of the city's former bounding wall.

The largest greenhouse in the world is home to over one million types of plants.

400-year-old garden, restored to beauty.

Hear the quietest sound from across the dome.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The world's largest collection of witchcraft regalia.

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

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

The UK's oldest theme park slowly slips away.

The longest hedge maze in the world.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

Climb to the top of the world's largest seated bronze Buddha.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

Recently restored menagerie of Victorian-era beasts.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

In 1943 the British military took control of this village, telling residents they had to leave temporarily. The villagers were never allowed to return.

Fascinating town where normal life interfaces with the occult.

A fantastic castle rumored to be the birthplace of King Arthur.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.