These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

The hidden ruins of an old hydroelectric plant reclaimed by nature.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This craggy boulder is fabled to be either a druidic relic or Satan's stumbling block.

Both church and state get put to the torch in this annual festival in the "Bonfire Capital of the World."

A stone plaque and a winking pub name are all that remain to remember the victims of deadly 1836 avalanche.

This monumental gateway marks the northern edge of Brighton and is a welcome sign to all visitors to the seaside city.

This memorial to the thousands of Indian dead during WWI was callously used for target practice during WWII.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

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

This WWII aircraft museum presents its wrecks like taxidermy, complete with recreations of the crash sites.

Nearly 2 billion seeds from 38,000 species are stored and processed at this visitable facility in a quiet corner of England.

The elegant structure of this 19th century railroad bridge creates an illusion of infinity.