A celebrated bandstand at the center of what was once the worst slum in London.

This medieval church tower has maintained its clockworks since the 16th century.

You will not be able to miss this building.

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

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

The prolific artwork of a self-taught sculptor.

An impressive home made of stone, carved more than a century ago.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The ruins of an ancient stadium that hosted gripping chariot and horse races.

An ancient Egyptian temple in the middle of Madrid, Spain.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

The earliest known map to show America, discovered by accident at a Paris bookshop.

This embalmed man is one of the best preserved mummies from the Canary Islands.

Commonly acknowledged as the only public monument to the Devil himself.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.