The most visited, and possibly most controversial, museum in Germany.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

Protecting the dead from opportunistic body snatchers.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A hugely vast Irish landscape of barren rock that stretches for miles.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

An enormous cat made of recycled wood scraps.

This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A wunderkammer hidden on the top floor of the Hartford statehouse.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

A vast collection of rare books, manuscripts & extraordinary objects illustrating the history of medicine.

An extra-wide chair built to accommodate the former president's big behind.