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

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

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

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

A towering sculpture, likened to an adult toy, sparked local and national debate.

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

Denmark’s oldest bakery is home to the 'Wednesday Snail,' one of the best cinnamon rolls on the planet.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

A tower devoted to — and modeled after — the Divine Comedy.

This angular brutalist playground turns playtime into modern art time.

Commemorating the planting of trees by the Atlanta chapter of the Concatenated Order of Hoo-Hoo.

Final remnants of the 1895 Cotton States and International Exposition.

One of two observatories in the U.S. that routinely detect gravitational waves.

The sail of the first nuclear sub to circumnavigate the world.