The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Perhaps the most scandalous statue of America's first president.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

These boots are made for selfies.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

The longest and tallest aqueduct in Britain can actually be sailed across.

19th century tunnels burrowed under Liverpool.

As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Go inside to really appreciate this 500-year-old technological masterpiece.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Breathtaking and huge 430 year old maps of Italy.

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."