Some of England's last cave dwellers lived and worked within this huge cave.

A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

Edoras, capital city of Rohan in Lord of the Rings, once sat atop this isolated New Zealand mountain.

Highly spherical boulders on the shores of New Zealand.

A perfect turquoise lake colored with glacier dust.

Three rooms of bones, curios, and one artist's collection of natural artifacts create this intriguing museum.

One of the world's steepest streets seems to have houses sliding down it.

A New Zealand couple's shell-adorned home living room, now on display at the Canterbury Museum.

The ruins of New Zealand's largest classical-style church.

An unusual and powerful memorial in which earthquake victims are remembered by empty white chairs.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A black cat protests the City Guild in Riga's Old Town.

3,000 market stands in five former Zeppelin hangars.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

The Guardian of Tallinn.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

"There's nothing there," and other lies the KGB told us.

A giant gorilla made of used car tires used to sit sentinel over a Helsinki college campus.