The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

These steps were uniquely crafted so Bishop Richard Fox could travel between his home and town.

A monument at the site of a decisive battle in the First English Civil War.

This breathtakingly beautiful botanical garden is home to a mob of wonderful wallabies.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

An incarceration museum on the spot of possibly the oldest prison in England.

A statue of the heroine who stopped time to save her betrothed.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

The grounds of this Jacobean estate contain one of the oldest mulberry trees in England.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

A chilling monument to Korean patriots who resisted the Japanese occupation.

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

This famous city eluded concrete detection until the early 2000's.

A crumbling hospital from the 1850s on Roosevelt Island.

An open-air museum exhibiting a total of 52 century-old buildings, recreating Hokkaido’s “pioneer village.”

Crumbling hotel echoes with the sounds of the '30s.

This Croatian island is for sale but no one is buying due to the dozens of accused Nazi sympathizers who were massacred there after WWII.

A mysterious air force base built to resemble a Long Island fishing village.

A monument to the center of the North American continent may be off by a few miles.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.