The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

The former hotel where Tesla invented the radio.

Commemorating the spot where the famous scientist fed his pigeons.

The Sun King's military models, saved from the Louvre.

A psychological self-portrait in the form of a giant, segmented head.

Dictionary Johnson’s favorite feline.

An alchemist's "magic door" stands in the middle of a Roman park.

The Uros people live on floating reed islands in lake Titicaca.

A modest reminder of treacherous waters at the Golden Gate.

A winding path built in secret on the edge of the continent.

Survival capsules find a second life as a unique hotel.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Come stay at a live-in art installation.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

One of the first hotel rooms in a pod.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Fine dining in the bizarre world of Lewis Carroll.

One woman's decades-long obsession with the "La Fée Verte."

Come for the pastrami, stay for the million-dollar art.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

An unusual number plate signifies the building's saucy past.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.