The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

The intended purpose of this unfinished Elizabethan building remains a mystery.

Recently restored menagerie of Victorian-era beasts.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

This amazing 15th-century mural remained hidden in plain sight for centuries.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Its collection includes a broad array of social, geographic, graphic design, and political history.

An architectural oddity hides in plain sight on this iconic London bridge.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Pop culture has helped to keep this iconic British building from being destroyed.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Northern Ireland's Brobdingnagian stepping stones.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Scotland's oldest purpose-built concert hall houses an incredible collection of ornate, centuries-old keyboards.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

The colorful stairs are made with marble from the world's major quarries.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.