A mysterious bridge over a sunken Roman road.

Local legend says this unusual chimney is actually a broken-hearted man's tomb.

An oasis of calm, nestled in the English countryside.

This unusual geoglyph was built as a warning so low-flying aircraft wouldn't scare the zoo animals.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

A monument to one of the most famous modernist Chinese poems and its poet.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

An unusual artwork dedicated to a unique man that entertained people visiting Cambridge while raising money for charity.

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

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Eat the ultimate iteration of Portugal's most beloved pastry.

Sip cherry liqueur at a bar dating back to 1840.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

In Gloucester, Massachussets, fishermen celebrate a successful year at sea by charging a lubed pole to capture an Italian flag.

One of South America's most exclusive resorts has a storied history dating back to World War II.

A gateway to a mysterious network of underground tunnels.

Beautiful public park off the beaten path and away from tourists.