A dozen cast iron leopards stand guard along the length of Aberdeen's Union Bridge.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

A beautiful but toxic fountain of mercury.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Cambridge’s century-old outdoor swimming pool is tied for being the longest pool in the United Kingdom, but it is also unusually narrow.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

An American ghost town hides along a side street in Scotland's capital.

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

Eighty million natural history specimens call this gargantuan museum home.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Da Vinci's equestrian statue, 500 years in the making.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

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

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

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

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

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