These gardens recreate unique and endangered Michigan habitats.

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

Before construction of the famous Tintagel Castle, this site in Cornwall was likely a prosperous Dark Age trading port.

These mysterious mazes carved on the rock may be up to 4,000 years old.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

A 14th century castle built on the seat of a mighty giant.

On this headland lies a 19th-century lighthouse and historic gun battery.

The excellent acoustics of this natural amphitheater made it a popular preaching spot for the founder of the Methodist Church.

A circle stone within a stone circle.

A open air theatre built on a cliff by an eccentric British woman.

Perhaps the only prehistoric monument with its very own public bus stop.

This group of sculptures includes the first statue of a female politician in London.

Ship-sized kinetic sculptural fantasy.

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

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A memorial for public executions that dates back to the 14th century.

The remains of a historic football stadium that once hosted 50,000 spectators.

This monstrous face has watched over passersby for centuries.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

A remarkable medieval structure born from a 14th-century disaster.

This 15th-century fortification was built to defend bunnies.

A hill carving of the legendary dragon that terrorized the village of Bures in the Middle Ages.