The many—66 to be exact—faces of the German forest.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

A walk through the historic city center, under the streets of Seattle.

The first park built over a freeway is a brutalist masterwork.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

A colorful architectural gem in Seattle's uniquely modern Central Library.

This abandoned five-star hotel is now a five-star urban exploration destination.

This oddly shaped church resembles a rocket.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.