This curious, round temple is the oldest still-standing marble building in Rome.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This is the oldest Roman-made bridge in the city still existing in its original state.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

An artistic tribute to the famous singer, just around the corner from where he was born.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Over a thousand musical instruments are on display, from bagpipes and harpsichords to drums and the sinuous serpent.

Home to the most complete dodo remains known - one head, and one foot.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

The remnants of this unusual bridge await an uncertain fate.

Legend says this public grazing area hasn't been plowed for thousands of years.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

One of Oxford's greatest treasures likely belonged to the legendary King Alfred the Great.

This hidden 13th-century tavern room has a few Shakespearean connections.

This centuries-old pub boasts a collection of more than 4,500 snippets of neckties from around the world.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

This 11th century tower is said to be the oldest building in Oxford.

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

Inside this church is an obscure piece of art carved by the famous Alice Liddell.

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

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

The medieval legend behind this holy well was one of the inspirations behind "Alice's Adventures in Wonderland."

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

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.