Places solarconstant Wants to Go

A New England curiosity cabinet, one hundred years on.

Europe's largest prehistoric mound – burial site of a legendary king?

The world's second largest single-dish radio telescope, once used to contact E.T.

Housing the groundbreaking maps and globes of Gerard Mercator.

Home to the only outdoor municipal elevator in the United States.

World's second largest particle accelerator, where nature reveals its secrets.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Home of Howard Hughes' Spruce Goose.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

The longest and tallest aqueduct in Britain can actually be sailed across.

A Gothic cathedral created from volcanic rocks.

Site of the greatest known waterfall that ever existed.

A chapel on a volcanic core, marking the end of a successful journey.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

A mud volcano in Indonesia spews out 50,000 cubic meters of mud every day.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Dig for your own trilobites in this goldmine of invertebrates.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

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

Eighteenth-century home, where Herschel discovered the planet Uranus.

Bioluminescent firefly squid light up this Japanese fishing port.

Rare and strange weather predictors, from mercury barometers to leech prognosticators.

Apartment complexes built into huge repurposed natural gas tanks.