An ancient knight and a symbol of the city's freedom.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Oriental bazaar in the heart of Sarajevo.

An ethereal glowing blue ocean cave in Croatia.

Statue commemorating the use of ether in anesthesia.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Ship-sized kinetic sculptural fantasy.

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

Hear the quietest sound from across the dome.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

The beams of the New College, Oxford dining hall come with an amazing story.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

One of Europe's oldest libraries.

Used as an example in one of the first dictionary entries for "museum" in 1706.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

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

The oldest inn in England served brew to the crusaders.

Huge winged monument in the United Kingdom.

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

This stately estate house features a tower covered in a bright, modern mural.