Stroll through Welsh history in a village of reconstructed structures.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This stunning concert hall has become a symbol of Iceland's national recovery.

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

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Tucked in the back of this amazing antique store is an important piece of medical history.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Most famous work of one of Frank Lloyd Wright's sons.

World-famous, Pink's still manages to keep its prized cult fetish status.

The private clubhouse for the members of the Academy of Magical Arts.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Resting place of Hollywood's immortals is also site of summer film screenings.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

World's largest collection of serial killer artwork and other macabre exhibits.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.