Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

Profile of a sleeping person 4km long in 250m high cliffs.

A giant metal mosquito prepares to feast.

In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This statue points to another unusual companion work of art often overlooked by visitors.

100-year-old shipwreck you can walk up to at low tide.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

These giant metal horses graze on a hilltop near the Montana highway.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

A strangely curved lamppost stands tall over this avenue in Rotterdam.

Built in the 1920s, this co-op in the Bronx feels more like an Italian villa than a typical New York apartment building.

The oldest skyscraper of Europe now stands dwarfed by the surrounding structures.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

This landmark overlooking Ramsbottom pays homage to Sir Robert Peel, repealer of the Corn Laws.

This 20th-century replica of a 13th-century castle has itself fallen into ruin.

A water reservoir disguised as a castle stands atop a hill in a park in Stockholm city.

One woman's Viking Castle on Lake Tahoe.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

Church built on the site where the last tsar of Russia and his family were killed.

This sprawling stronghold has been at the center of some of South India's bloodiest wars.

The best-preserved Roman site in India.

Modest by day, illuminated majestically at sunset.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.