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

The second oldest anatomical theater is housed in a museum of curiosities.

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

A little-known sculpture park of contemporary environmental art in a Lapland forest.

Mummified monks and the accidentally interred, in a 17th-century crypt.

This intricately spiralling forest was created as a monumental work of art.

No matter how many times this community-run sauna gets destroyed, it always rises from the ashes.

Crawling into this primordial cave may feel disconcertingly familiar.

The first monument in Estonia that was made by an Estonian sculptor.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This ten-ton fruit sculpture celebrates the Finland homeland.

Once a year, local students "clean" this statue with a champagne shower.

The first designer power line in Estonia.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

Historic slum of Tartu.

Man-made mineral caves house massive bat colony.

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

Mysterious craters may have been home to an ancient cult.

A large visitor's complex and place of remembrance on the outskirts of the DMZ.

In medieval times this small stone seat was used as a bizarre way to punish insolvent debtors.