This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

Baroque celebration of the end of the Great Plague of Vienna.

Golden Gate Park's historic collection of plants.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Quite simply the largest tree in the world (by volume).

A six-ton wedding present for the King of the Scots.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Come for the flowers, stay for the bats!

The 10,000 Torii shrine.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This bridge was constructed from the rubble of the infamous Bastille.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Copenhagen's celebrated theme park and gardens.

A bit of retro transportation flair preserved in the world's largest department store.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Cold war icon and onetime "hole" in the iron curtain.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.