A lush oasis full of vibrant plants and striking geometric displays.

A micronation on an islet along the coast of a Portuguese island.

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

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Giant, friendly pelicans in Central London, the most unlikely of places.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

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

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

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

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

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

Famously misunderstood wonder of the ancient world

The oldest working mechanical clock in the world.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

This quarry filled with 65 million-year-old limestone is now home to a nature reserve.

This chimerical bridge/tunnel appears to dead end right into the sea.