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

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

Commemorating the landing of William of Orange with his European army on their way to the Battle of the Boyne.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This historic streetcar system has been running since the 19th-century.

A large collection of solar and night-time telescopes dot a small area on the Teide mountain range.

This monumental work of art symbolizes the coming together of a previously divided city.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Europe's largest community of crocodiles and alligators.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

A quaint medieval harbour where Benjamin Franklin landed in 1776.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

A small island that was once a key Axis fortification during World War II.

Journey through the ruins of this ancient Roman temple dedicated to the god of war.

Medieval Danse Macabre Fresco in Northern Brittany.

The precise origins of this pink sandstone temple are unknown.

This figure of a local merchant is said to reanimate and do a dance during Hogmanay.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

A remarkable feat of Victorian engineering across the Firth of Forth.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

This densely-packed cluster of buildings was saved from the wrecking ball and turned into an art community.