This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

The final resting place of England's most notorious bandit.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

The now-quiet remains of coastal artillery defenses that were used in both World Wars.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

This monumental gateway marks the northern edge of Brighton and is a welcome sign to all visitors to the seaside city.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

The bronze uniforms commemorate the vital role of women during World War II.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

The pockmarks across the building's facade are remnants of the Blitz.

This ancient Egyptian obelisk still bears the wounds of World War I.

This striking statue brings a scene from the African savannah into central London.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Its collection includes a broad array of social, geographic, graphic design, and political history.

London's marvelous wildfowl reserve along the Thames.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

The commemorative stone column conceals a secret laboratory.