Underneath the well-known Lindenhof hides a secret cellar documenting Zurich's early history.

A 700-year-old drinking fountain turned charity for the less fortunate of Zurich.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

Unconventional site where the tracks of Zurich tramcars intersect.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

Zurich's evolution museum hosts a unique collection of skeletons among its natural history treasures.

This 11th-century fortress is now the seat of Aragon’s state legislature.

This Swiss cemetery is reserved for people who died in climbing accidents.

Hawaii’s largest cemetery rests inside an extinct volcano crater.

This Costa Rican chapel is the most metal church in the world, literally.

This Costa Rican topiary park is a surreal garden of unearthly delights.

Sloth rehabilitation center in the jungle of Costa Rica.

This abandoned hospital is one of the most haunted places in Costa Rica.

An intentionally grounded cargo ship remains half-buried in the sand.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

Along a coast that sees the annual migration of humpback whales, a geological formation that takes the shape of a whale’s tail.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

This church in Old Goa was established by eight Portuguese Franciscan friars who landed there in 1517.

This island castle now hosts a world-famous opera festival.

These lakeside pictographs were some of the first pieces of prehistoric artwork found in Finland.